Home / 28,433.52-42,655.30-9,709.17

Finding the Fourth Proportional to 28,433.52, 42,655.30 and 9,709.17

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Solution

The fourth proportional to 28,433.52, 42,655.30 and 9,709.17 is: 14,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.52 : 42,655.30 = 9,709.17 : x
  2. Step 2: Convert to fraction form
    28,433.52/42,655.30 = 9,709.17/x
  3. Step 3: Cross multiply
    28,433.52x = 42,655.30 × 9,709.17
  4. Step 4: Simplify right side
    28,433.52x = 414,147,526.90
  5. Step 5: Solve for x
    x = 414,147,526.90/28,433.52
  6. Step 6: Final answer
    x = 14,565.47

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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.