Home / 39,440.17-54,427.16-21,535.16

Finding the Fourth Proportional to 39,440.17, 54,427.16 and 21,535.16

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Solution

The fourth proportional to 39,440.17, 54,427.16 and 21,535.16 is: 29,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.17 : 54,427.16 = 21,535.16 : x
  2. Step 2: Convert to fraction form
    39,440.17/54,427.16 = 21,535.16/x
  3. Step 3: Cross multiply
    39,440.17x = 54,427.16 × 21,535.16
  4. Step 4: Simplify right side
    39,440.17x = 1,172,097,491.27
  5. Step 5: Solve for x
    x = 1,172,097,491.27/39,440.17
  6. Step 6: Final answer
    x = 29,718.37

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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.