Home / 28,376.85-42,569.87-9,658.56

Finding the Fourth Proportional to 28,376.85, 42,569.87 and 9,658.56

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Solution

The fourth proportional to 28,376.85, 42,569.87 and 9,658.56 is: 14,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.85 : 42,569.87 = 9,658.56 : x
  2. Step 2: Convert to fraction form
    28,376.85/42,569.87 = 9,658.56/x
  3. Step 3: Cross multiply
    28,376.85x = 42,569.87 × 9,658.56
  4. Step 4: Simplify right side
    28,376.85x = 411,163,595.29
  5. Step 5: Solve for x
    x = 411,163,595.29/28,376.85
  6. Step 6: Final answer
    x = 14,489.40

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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.