Home / 39,440.57-54,427.57-21,535.52

Finding the Fourth Proportional to 39,440.57, 54,427.57 and 21,535.52

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Solution

The fourth proportional to 39,440.57, 54,427.57 and 21,535.52 is: 29,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.57 : 54,427.57 = 21,535.52 : x
  2. Step 2: Convert to fraction form
    39,440.57/54,427.57 = 21,535.52/x
  3. Step 3: Cross multiply
    39,440.57x = 54,427.57 × 21,535.52
  4. Step 4: Simplify right side
    39,440.57x = 1,172,125,696.31
  5. Step 5: Solve for x
    x = 1,172,125,696.31/39,440.57
  6. Step 6: Final answer
    x = 29,718.79

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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.