Home / 42,539.34-63,818.24-12,956.40

Finding the Fourth Proportional to 42,539.34, 63,818.24 and 12,956.40

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Solution

The fourth proportional to 42,539.34, 63,818.24 and 12,956.40 is: 19,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,539.34 : 63,818.24 = 12,956.40 : x
  2. Step 2: Convert to fraction form
    42,539.34/63,818.24 = 12,956.40/x
  3. Step 3: Cross multiply
    42,539.34x = 63,818.24 × 12,956.40
  4. Step 4: Simplify right side
    42,539.34x = 826,854,579.95
  5. Step 5: Solve for x
    x = 826,854,579.95/42,539.34
  6. Step 6: Final answer
    x = 19,437.41

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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.