Home / 20,043.20-30,061.28-7,564.32

Finding the Fourth Proportional to 20,043.20, 30,061.28 and 7,564.32

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Solution

The fourth proportional to 20,043.20, 30,061.28 and 7,564.32 is: 11,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.20 : 30,061.28 = 7,564.32 : x
  2. Step 2: Convert to fraction form
    20,043.20/30,061.28 = 7,564.32/x
  3. Step 3: Cross multiply
    20,043.20x = 30,061.28 × 7,564.32
  4. Step 4: Simplify right side
    20,043.20x = 227,393,141.53
  5. Step 5: Solve for x
    x = 227,393,141.53/20,043.20
  6. Step 6: Final answer
    x = 11,345.15

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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.