Home / 20,475.17-30,711.53-12,046.41

Finding the Fourth Proportional to 20,475.17, 30,711.53 and 12,046.41

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Solution

The fourth proportional to 20,475.17, 30,711.53 and 12,046.41 is: 18,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.17 : 30,711.53 = 12,046.41 : x
  2. Step 2: Convert to fraction form
    20,475.17/30,711.53 = 12,046.41/x
  3. Step 3: Cross multiply
    20,475.17x = 30,711.53 × 12,046.41
  4. Step 4: Simplify right side
    20,475.17x = 369,963,712.22
  5. Step 5: Solve for x
    x = 369,963,712.22/20,475.17
  6. Step 6: Final answer
    x = 18,068.90

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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.