Home / 40,386.47-60,592.10-20,678.87

Finding the Fourth Proportional to 40,386.47, 60,592.10 and 20,678.87

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Solution

The fourth proportional to 40,386.47, 60,592.10 and 20,678.87 is: 31,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386.47 : 60,592.10 = 20,678.87 : x
  2. Step 2: Convert to fraction form
    40,386.47/60,592.10 = 20,678.87/x
  3. Step 3: Cross multiply
    40,386.47x = 60,592.10 × 20,678.87
  4. Step 4: Simplify right side
    40,386.47x = 1,252,976,158.93
  5. Step 5: Solve for x
    x = 1,252,976,158.93/40,386.47
  6. Step 6: Final answer
    x = 31,024.65

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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.