Home / 20,545.26-30,817.62-4,962.78

Finding the Fourth Proportional to 20,545.26, 30,817.62 and 4,962.78

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Solution

The fourth proportional to 20,545.26, 30,817.62 and 4,962.78 is: 7,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.26 : 30,817.62 = 4,962.78 : x
  2. Step 2: Convert to fraction form
    20,545.26/30,817.62 = 4,962.78/x
  3. Step 3: Cross multiply
    20,545.26x = 30,817.62 × 4,962.78
  4. Step 4: Simplify right side
    20,545.26x = 152,941,068.18
  5. Step 5: Solve for x
    x = 152,941,068.18/20,545.26
  6. Step 6: Final answer
    x = 7,444.10

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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.