Home / 39,247.74-54,159.12-21,342.42

Finding the Fourth Proportional to 39,247.74, 54,159.12 and 21,342.42

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Solution

The fourth proportional to 39,247.74, 54,159.12 and 21,342.42 is: 29,451.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.74 : 54,159.12 = 21,342.42 : x
  2. Step 2: Convert to fraction form
    39,247.74/54,159.12 = 21,342.42/x
  3. Step 3: Cross multiply
    39,247.74x = 54,159.12 × 21,342.42
  4. Step 4: Simplify right side
    39,247.74x = 1,155,886,685.87
  5. Step 5: Solve for x
    x = 1,155,886,685.87/39,247.74
  6. Step 6: Final answer
    x = 29,451.04

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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.