Home / 39,385.11-54,349.28-22,386.99

Finding the Fourth Proportional to 39,385.11, 54,349.28 and 22,386.99

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Solution

The fourth proportional to 39,385.11, 54,349.28 and 22,386.99 is: 30,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,385.11 : 54,349.28 = 22,386.99 : x
  2. Step 2: Convert to fraction form
    39,385.11/54,349.28 = 22,386.99/x
  3. Step 3: Cross multiply
    39,385.11x = 54,349.28 × 22,386.99
  4. Step 4: Simplify right side
    39,385.11x = 1,216,716,787.87
  5. Step 5: Solve for x
    x = 1,216,716,787.87/39,385.11
  6. Step 6: Final answer
    x = 30,892.81

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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.