Home / 39,351.28-59,035.69-14,390.78

Finding the Fourth Proportional to 39,351.28, 59,035.69 and 14,390.78

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Solution

The fourth proportional to 39,351.28, 59,035.69 and 14,390.78 is: 21,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,351.28 : 59,035.69 = 14,390.78 : x
  2. Step 2: Convert to fraction form
    39,351.28/59,035.69 = 14,390.78/x
  3. Step 3: Cross multiply
    39,351.28x = 59,035.69 × 14,390.78
  4. Step 4: Simplify right side
    39,351.28x = 849,569,626.94
  5. Step 5: Solve for x
    x = 849,569,626.94/39,351.28
  6. Step 6: Final answer
    x = 21,589.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.