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Finding the Fourth Proportional to 37,605.89, 51,891.90 and 21,695.47

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Solution

The fourth proportional to 37,605.89, 51,891.90 and 21,695.47 is: 29,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,605.89 : 51,891.90 = 21,695.47 : x
  2. Step 2: Convert to fraction form
    37,605.89/51,891.90 = 21,695.47/x
  3. Step 3: Cross multiply
    37,605.89x = 51,891.90 × 21,695.47
  4. Step 4: Simplify right side
    37,605.89x = 1,125,819,159.69
  5. Step 5: Solve for x
    x = 1,125,819,159.69/37,605.89
  6. Step 6: Final answer
    x = 29,937.31

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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.