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Finding the Fourth Proportional to 28,473.17, 42,735.80 and 14,442.91

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Solution

The fourth proportional to 28,473.17, 42,735.80 and 14,442.91 is: 21,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.17 : 42,735.80 = 14,442.91 : x
  2. Step 2: Convert to fraction form
    28,473.17/42,735.80 = 14,442.91/x
  3. Step 3: Cross multiply
    28,473.17x = 42,735.80 × 14,442.91
  4. Step 4: Simplify right side
    28,473.17x = 617,229,242.45
  5. Step 5: Solve for x
    x = 617,229,242.45/28,473.17
  6. Step 6: Final answer
    x = 21,677.57

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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.