Home / 35,520.53-53,280.80-12,147.17

Finding the Fourth Proportional to 35,520.53, 53,280.80 and 12,147.17

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Solution

The fourth proportional to 35,520.53, 53,280.80 and 12,147.17 is: 18,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,520.53 : 53,280.80 = 12,147.17 : x
  2. Step 2: Convert to fraction form
    35,520.53/53,280.80 = 12,147.17/x
  3. Step 3: Cross multiply
    35,520.53x = 53,280.80 × 12,147.17
  4. Step 4: Simplify right side
    35,520.53x = 647,210,874.60
  5. Step 5: Solve for x
    x = 647,210,874.60/35,520.53
  6. Step 6: Final answer
    x = 18,220.76

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Similar ratio
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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.