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Finding the Fourth Proportional to 28,687.96, 43,031.94 and 10,207

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Solution

The fourth proportional to 28,687.96, 43,031.94 and 10,207 is: 15,310.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.96 : 43,031.94 = 10,207 : x
  2. Step 2: Convert to fraction form
    28,687.96/43,031.94 = 10,207/x
  3. Step 3: Cross multiply
    28,687.96x = 43,031.94 × 10,207
  4. Step 4: Simplify right side
    28,687.96x = 439,227,011.58
  5. Step 5: Solve for x
    x = 439,227,011.58/28,687.96
  6. Step 6: Final answer
    x = 15,310.50

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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.