Home / 34,552.88-47,680.36-20,403

Finding the Fourth Proportional to 34,552.88, 47,680.36 and 20,403

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Solution

The fourth proportional to 34,552.88, 47,680.36 and 20,403 is: 28,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,552.88 : 47,680.36 = 20,403 : x
  2. Step 2: Convert to fraction form
    34,552.88/47,680.36 = 20,403/x
  3. Step 3: Cross multiply
    34,552.88x = 47,680.36 × 20,403
  4. Step 4: Simplify right side
    34,552.88x = 972,822,385.08
  5. Step 5: Solve for x
    x = 972,822,385.08/34,552.88
  6. Step 6: Final answer
    x = 28,154.60

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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.