Home / 42,534.40-63,811.28-12,954.54

Finding the Fourth Proportional to 42,534.40, 63,811.28 and 12,954.54

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Solution

The fourth proportional to 42,534.40, 63,811.28 and 12,954.54 is: 19,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,534.40 : 63,811.28 = 12,954.54 : x
  2. Step 2: Convert to fraction form
    42,534.40/63,811.28 = 12,954.54/x
  3. Step 3: Cross multiply
    42,534.40x = 63,811.28 × 12,954.54
  4. Step 4: Simplify right side
    42,534.40x = 826,645,779.21
  5. Step 5: Solve for x
    x = 826,645,779.21/42,534.40
  6. Step 6: Final answer
    x = 19,434.76

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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.