Home / 35,835.12-49,445.28-21,688.92

Finding the Fourth Proportional to 35,835.12, 49,445.28 and 21,688.92

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Solution

The fourth proportional to 35,835.12, 49,445.28 and 21,688.92 is: 29,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,835.12 : 49,445.28 = 21,688.92 : x
  2. Step 2: Convert to fraction form
    35,835.12/49,445.28 = 21,688.92/x
  3. Step 3: Cross multiply
    35,835.12x = 49,445.28 × 21,688.92
  4. Step 4: Simplify right side
    35,835.12x = 1,072,414,722.30
  5. Step 5: Solve for x
    x = 1,072,414,722.30/35,835.12
  6. Step 6: Final answer
    x = 29,926.36

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Double scale
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Similar ratio
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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.