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Finding the Fourth Proportional to 28,175.04, 42,251.04 and 9,702.72

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Solution

The fourth proportional to 28,175.04, 42,251.04 and 9,702.72 is: 14,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.04 : 42,251.04 = 9,702.72 : x
  2. Step 2: Convert to fraction form
    28,175.04/42,251.04 = 9,702.72/x
  3. Step 3: Cross multiply
    28,175.04x = 42,251.04 × 9,702.72
  4. Step 4: Simplify right side
    28,175.04x = 409,950,010.83
  5. Step 5: Solve for x
    x = 409,950,010.83/28,175.04
  6. Step 6: Final answer
    x = 14,550.11

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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.