Home / 38,502.77-53,128.17-21,504.92

Finding the Fourth Proportional to 38,502.77, 53,128.17 and 21,504.92

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Solution

The fourth proportional to 38,502.77, 53,128.17 and 21,504.92 is: 29,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.77 : 53,128.17 = 21,504.92 : x
  2. Step 2: Convert to fraction form
    38,502.77/53,128.17 = 21,504.92/x
  3. Step 3: Cross multiply
    38,502.77x = 53,128.17 × 21,504.92
  4. Step 4: Simplify right side
    38,502.77x = 1,142,516,779.96
  5. Step 5: Solve for x
    x = 1,142,516,779.96/38,502.77
  6. Step 6: Final answer
    x = 29,673.63

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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.