Home / 38,078.59-52,548.51-21,311.59

Finding the Fourth Proportional to 38,078.59, 52,548.51 and 21,311.59

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Solution

The fourth proportional to 38,078.59, 52,548.51 and 21,311.59 is: 29,410.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,078.59 : 52,548.51 = 21,311.59 : x
  2. Step 2: Convert to fraction form
    38,078.59/52,548.51 = 21,311.59/x
  3. Step 3: Cross multiply
    38,078.59x = 52,548.51 × 21,311.59
  4. Step 4: Simplify right side
    38,078.59x = 1,119,892,300.23
  5. Step 5: Solve for x
    x = 1,119,892,300.23/38,078.59
  6. Step 6: Final answer
    x = 29,410.03

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Double scale
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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.