Home / 21,560.61-29,753.42-12,000.35

Finding the Fourth Proportional to 21,560.61, 29,753.42 and 12,000.35

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Solution

The fourth proportional to 21,560.61, 29,753.42 and 12,000.35 is: 16,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.61 : 29,753.42 = 12,000.35 : x
  2. Step 2: Convert to fraction form
    21,560.61/29,753.42 = 12,000.35/x
  3. Step 3: Cross multiply
    21,560.61x = 29,753.42 × 12,000.35
  4. Step 4: Simplify right side
    21,560.61x = 357,051,468.08
  5. Step 5: Solve for x
    x = 357,051,468.08/21,560.61
  6. Step 6: Final answer
    x = 16,560.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.