Home / 39,384.59-54,352.17-22,391.69

Finding the Fourth Proportional to 39,384.59, 54,352.17 and 22,391.69

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Solution

The fourth proportional to 39,384.59, 54,352.17 and 22,391.69 is: 30,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,384.59 : 54,352.17 = 22,391.69 : x
  2. Step 2: Convert to fraction form
    39,384.59/54,352.17 = 22,391.69/x
  3. Step 3: Cross multiply
    39,384.59x = 54,352.17 × 22,391.69
  4. Step 4: Simplify right side
    39,384.59x = 1,217,036,669.71
  5. Step 5: Solve for x
    x = 1,217,036,669.71/39,384.59
  6. Step 6: Final answer
    x = 30,901.35

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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.