Home / 42,551.24-63,816.30-12,961.40

Finding the Fourth Proportional to 42,551.24, 63,816.30 and 12,961.40

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Solution

The fourth proportional to 42,551.24, 63,816.30 and 12,961.40 is: 19,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,551.24 : 63,816.30 = 12,961.40 : x
  2. Step 2: Convert to fraction form
    42,551.24/63,816.30 = 12,961.40/x
  3. Step 3: Cross multiply
    42,551.24x = 63,816.30 × 12,961.40
  4. Step 4: Simplify right side
    42,551.24x = 827,148,590.82
  5. Step 5: Solve for x
    x = 827,148,590.82/42,551.24
  6. Step 6: Final answer
    x = 19,438.88

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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.