Home / 42,153.30-63,261.13-19,966.72

Finding the Fourth Proportional to 42,153.30, 63,261.13 and 19,966.72

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Solution

The fourth proportional to 42,153.30, 63,261.13 and 19,966.72 is: 29,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153.30 : 63,261.13 = 19,966.72 : x
  2. Step 2: Convert to fraction form
    42,153.30/63,261.13 = 19,966.72/x
  3. Step 3: Cross multiply
    42,153.30x = 63,261.13 × 19,966.72
  4. Step 4: Simplify right side
    42,153.30x = 1,263,117,417.37
  5. Step 5: Solve for x
    x = 1,263,117,417.37/42,153.30
  6. Step 6: Final answer
    x = 29,964.86

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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.