Home / 20,001.28-29,946.84-18,156.10

Finding the Fourth Proportional to 20,001.28, 29,946.84 and 18,156.10

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Solution

The fourth proportional to 20,001.28, 29,946.84 and 18,156.10 is: 27,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.28 : 29,946.84 = 18,156.10 : x
  2. Step 2: Convert to fraction form
    20,001.28/29,946.84 = 18,156.10/x
  3. Step 3: Cross multiply
    20,001.28x = 29,946.84 × 18,156.10
  4. Step 4: Simplify right side
    20,001.28x = 543,717,821.72
  5. Step 5: Solve for x
    x = 543,717,821.72/20,001.28
  6. Step 6: Final answer
    x = 27,184.15

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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.