Home / 20,038.62-30,049.73-8,937.71

Finding the Fourth Proportional to 20,038.62, 30,049.73 and 8,937.71

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Solution

The fourth proportional to 20,038.62, 30,049.73 and 8,937.71 is: 13,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.62 : 30,049.73 = 8,937.71 : x
  2. Step 2: Convert to fraction form
    20,038.62/30,049.73 = 8,937.71/x
  3. Step 3: Cross multiply
    20,038.62x = 30,049.73 × 8,937.71
  4. Step 4: Simplify right side
    20,038.62x = 268,575,772.32
  5. Step 5: Solve for x
    x = 268,575,772.32/20,038.62
  6. Step 6: Final answer
    x = 13,402.91

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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.