Home / 28,636.74-42,972.12-15,488.82

Finding the Fourth Proportional to 28,636.74, 42,972.12 and 15,488.82

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Solution

The fourth proportional to 28,636.74, 42,972.12 and 15,488.82 is: 23,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636.74 : 42,972.12 = 15,488.82 : x
  2. Step 2: Convert to fraction form
    28,636.74/42,972.12 = 15,488.82/x
  3. Step 3: Cross multiply
    28,636.74x = 42,972.12 × 15,488.82
  4. Step 4: Simplify right side
    28,636.74x = 665,587,431.70
  5. Step 5: Solve for x
    x = 665,587,431.70/28,636.74
  6. Step 6: Final answer
    x = 23,242.43

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1.5x scale

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.