Home / 20,387.49-30,591.67-9,292.74

Finding the Fourth Proportional to 20,387.49, 30,591.67 and 9,292.74

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Solution

The fourth proportional to 20,387.49, 30,591.67 and 9,292.74 is: 13,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387.49 : 30,591.67 = 9,292.74 : x
  2. Step 2: Convert to fraction form
    20,387.49/30,591.67 = 9,292.74/x
  3. Step 3: Cross multiply
    20,387.49x = 30,591.67 × 9,292.74
  4. Step 4: Simplify right side
    20,387.49x = 284,280,435.48
  5. Step 5: Solve for x
    x = 284,280,435.48/20,387.49
  6. Step 6: Final answer
    x = 13,943.87

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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.