Home / 15,141.20-22,711.80-13,610.30

Finding the Fourth Proportional to 15,141.20, 22,711.80 and 13,610.30

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Solution

The fourth proportional to 15,141.20, 22,711.80 and 13,610.30 is: 20,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.20 : 22,711.80 = 13,610.30 : x
  2. Step 2: Convert to fraction form
    15,141.20/22,711.80 = 13,610.30/x
  3. Step 3: Cross multiply
    15,141.20x = 22,711.80 × 13,610.30
  4. Step 4: Simplify right side
    15,141.20x = 309,114,411.54
  5. Step 5: Solve for x
    x = 309,114,411.54/15,141.20
  6. Step 6: Final answer
    x = 20,415.45

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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.