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Finding the Fourth Proportional to 28,715.51, 43,073.27 and 8,994.14

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Solution

The fourth proportional to 28,715.51, 43,073.27 and 8,994.14 is: 13,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.51 : 43,073.27 = 8,994.14 : x
  2. Step 2: Convert to fraction form
    28,715.51/43,073.27 = 8,994.14/x
  3. Step 3: Cross multiply
    28,715.51x = 43,073.27 × 8,994.14
  4. Step 4: Simplify right side
    28,715.51x = 387,406,955.55
  5. Step 5: Solve for x
    x = 387,406,955.55/28,715.51
  6. Step 6: Final answer
    x = 13,491.21

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Similar ratio
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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.