Home / 42,623.10-63,974.04-21,577.92

Finding the Fourth Proportional to 42,623.10, 63,974.04 and 21,577.92

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Solution

The fourth proportional to 42,623.10, 63,974.04 and 21,577.92 is: 32,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.10 : 63,974.04 = 21,577.92 : x
  2. Step 2: Convert to fraction form
    42,623.10/63,974.04 = 21,577.92/x
  3. Step 3: Cross multiply
    42,623.10x = 63,974.04 × 21,577.92
  4. Step 4: Simplify right side
    42,623.10x = 1,380,426,717.20
  5. Step 5: Solve for x
    x = 1,380,426,717.20/42,623.10
  6. Step 6: Final answer
    x = 32,386.82

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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.