Home / 19,530.80-29,275.20-8,442.76

Finding the Fourth Proportional to 19,530.80, 29,275.20 and 8,442.76

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Solution

The fourth proportional to 19,530.80, 29,275.20 and 8,442.76 is: 12,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.80 : 29,275.20 = 8,442.76 : x
  2. Step 2: Convert to fraction form
    19,530.80/29,275.20 = 8,442.76/x
  3. Step 3: Cross multiply
    19,530.80x = 29,275.20 × 8,442.76
  4. Step 4: Simplify right side
    19,530.80x = 247,163,487.55
  5. Step 5: Solve for x
    x = 247,163,487.55/19,530.80
  6. Step 6: Final answer
    x = 12,655.06

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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.