Home / 40,639.47-60,976.45-21,897.72

Finding the Fourth Proportional to 40,639.47, 60,976.45 and 21,897.72

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Solution

The fourth proportional to 40,639.47, 60,976.45 and 21,897.72 is: 32,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,639.47 : 60,976.45 = 21,897.72 : x
  2. Step 2: Convert to fraction form
    40,639.47/60,976.45 = 21,897.72/x
  3. Step 3: Cross multiply
    40,639.47x = 60,976.45 × 21,897.72
  4. Step 4: Simplify right side
    40,639.47x = 1,335,244,961.40
  5. Step 5: Solve for x
    x = 1,335,244,961.40/40,639.47
  6. Step 6: Final answer
    x = 32,855.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.