Home / 35,149.12-48,504.34-21,009.76

Finding the Fourth Proportional to 35,149.12, 48,504.34 and 21,009.76

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Solution

The fourth proportional to 35,149.12, 48,504.34 and 21,009.76 is: 28,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,149.12 : 48,504.34 = 21,009.76 : x
  2. Step 2: Convert to fraction form
    35,149.12/48,504.34 = 21,009.76/x
  3. Step 3: Cross multiply
    35,149.12x = 48,504.34 × 21,009.76
  4. Step 4: Simplify right side
    35,149.12x = 1,019,064,542.36
  5. Step 5: Solve for x
    x = 1,019,064,542.36/35,149.12
  6. Step 6: Final answer
    x = 28,992.60

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Half scale
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Double scale
Find fourth proportional to 35,150.12, 48,505.72 and 21,010.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.