Home / 42,620.23-63,916.52-20,127.43

Finding the Fourth Proportional to 42,620.23, 63,916.52 and 20,127.43

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Solution

The fourth proportional to 42,620.23, 63,916.52 and 20,127.43 is: 30,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,620.23 : 63,916.52 = 20,127.43 : x
  2. Step 2: Convert to fraction form
    42,620.23/63,916.52 = 20,127.43/x
  3. Step 3: Cross multiply
    42,620.23x = 63,916.52 × 20,127.43
  4. Step 4: Simplify right side
    42,620.23x = 1,286,475,261.40
  5. Step 5: Solve for x
    x = 1,286,475,261.40/42,620.23
  6. Step 6: Final answer
    x = 30,184.61

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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.