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Finding the Fourth Proportional to 28,876.62, 43,314.94 and 6,988.62

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Solution

The fourth proportional to 28,876.62, 43,314.94 and 6,988.62 is: 10,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.62 : 43,314.94 = 6,988.62 : x
  2. Step 2: Convert to fraction form
    28,876.62/43,314.94 = 6,988.62/x
  3. Step 3: Cross multiply
    28,876.62x = 43,314.94 × 6,988.62
  4. Step 4: Simplify right side
    28,876.62x = 302,711,655.98
  5. Step 5: Solve for x
    x = 302,711,655.98/28,876.62
  6. Step 6: Final answer
    x = 10,482.93

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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.