Home / 34,541.76-47,671.32-21,120.88

Finding the Fourth Proportional to 34,541.76, 47,671.32 and 21,120.88

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Solution

The fourth proportional to 34,541.76, 47,671.32 and 21,120.88 is: 29,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,541.76 : 47,671.32 = 21,120.88 : x
  2. Step 2: Convert to fraction form
    34,541.76/47,671.32 = 21,120.88/x
  3. Step 3: Cross multiply
    34,541.76x = 47,671.32 × 21,120.88
  4. Step 4: Simplify right side
    34,541.76x = 1,006,860,229.16
  5. Step 5: Solve for x
    x = 1,006,860,229.16/34,541.76
  6. Step 6: Final answer
    x = 29,149.07

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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.