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Finding the Fourth Proportional to 20,001.60, 30,002.40 and 13,076.10

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Solution

The fourth proportional to 20,001.60, 30,002.40 and 13,076.10 is: 19,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.60 : 30,002.40 = 13,076.10 : x
  2. Step 2: Convert to fraction form
    20,001.60/30,002.40 = 13,076.10/x
  3. Step 3: Cross multiply
    20,001.60x = 30,002.40 × 13,076.10
  4. Step 4: Simplify right side
    20,001.60x = 392,314,382.64
  5. Step 5: Solve for x
    x = 392,314,382.64/20,001.60
  6. Step 6: Final answer
    x = 19,614.15

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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.