Home / 18,943.17-28,414.76-18,915.84

Finding the Fourth Proportional to 18,943.17, 28,414.76 and 18,915.84

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Solution

The fourth proportional to 18,943.17, 28,414.76 and 18,915.84 is: 28,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.17 : 28,414.76 = 18,915.84 : x
  2. Step 2: Convert to fraction form
    18,943.17/28,414.76 = 18,915.84/x
  3. Step 3: Cross multiply
    18,943.17x = 28,414.76 × 18,915.84
  4. Step 4: Simplify right side
    18,943.17x = 537,488,911.72
  5. Step 5: Solve for x
    x = 537,488,911.72/18,943.17
  6. Step 6: Final answer
    x = 28,373.75

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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.