Home / 39,329.32-54,275.05-21,424.31

Finding the Fourth Proportional to 39,329.32, 54,275.05 and 21,424.31

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Solution

The fourth proportional to 39,329.32, 54,275.05 and 21,424.31 is: 29,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,329.32 : 54,275.05 = 21,424.31 : x
  2. Step 2: Convert to fraction form
    39,329.32/54,275.05 = 21,424.31/x
  3. Step 3: Cross multiply
    39,329.32x = 54,275.05 × 21,424.31
  4. Step 4: Simplify right side
    39,329.32x = 1,162,805,658.93
  5. Step 5: Solve for x
    x = 1,162,805,658.93/39,329.32
  6. Step 6: Final answer
    x = 29,565.87

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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.