Home / 39,034.96-53,868.27-21,129.91

Finding the Fourth Proportional to 39,034.96, 53,868.27 and 21,129.91

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Solution

The fourth proportional to 39,034.96, 53,868.27 and 21,129.91 is: 29,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,034.96 : 53,868.27 = 21,129.91 : x
  2. Step 2: Convert to fraction form
    39,034.96/53,868.27 = 21,129.91/x
  3. Step 3: Cross multiply
    39,034.96x = 53,868.27 × 21,129.91
  4. Step 4: Simplify right side
    39,034.96x = 1,138,231,427.61
  5. Step 5: Solve for x
    x = 1,138,231,427.61/39,034.96
  6. Step 6: Final answer
    x = 29,159.29

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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.