Home / 34,384.22-47,478.42-21,657.90

Finding the Fourth Proportional to 34,384.22, 47,478.42 and 21,657.90

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Solution

The fourth proportional to 34,384.22, 47,478.42 and 21,657.90 is: 29,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,384.22 : 47,478.42 = 21,657.90 : x
  2. Step 2: Convert to fraction form
    34,384.22/47,478.42 = 21,657.90/x
  3. Step 3: Cross multiply
    34,384.22x = 47,478.42 × 21,657.90
  4. Step 4: Simplify right side
    34,384.22x = 1,028,282,872.52
  5. Step 5: Solve for x
    x = 1,028,282,872.52/34,384.22
  6. Step 6: Final answer
    x = 29,905.66

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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.