Home / 22,042.78-30,428.34-14,882.40

Finding the Fourth Proportional to 22,042.78, 30,428.34 and 14,882.40

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Solution

The fourth proportional to 22,042.78, 30,428.34 and 14,882.40 is: 20,543.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.78 : 30,428.34 = 14,882.40 : x
  2. Step 2: Convert to fraction form
    22,042.78/30,428.34 = 14,882.40/x
  3. Step 3: Cross multiply
    22,042.78x = 30,428.34 × 14,882.40
  4. Step 4: Simplify right side
    22,042.78x = 452,846,575.07
  5. Step 5: Solve for x
    x = 452,846,575.07/22,042.78
  6. Step 6: Final answer
    x = 20,543.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.