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Finding the Fourth Proportional to 30,437.31, 45,655.97 and 8,250.69

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Solution

The fourth proportional to 30,437.31, 45,655.97 and 8,250.69 is: 12,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.31 : 45,655.97 = 8,250.69 : x
  2. Step 2: Convert to fraction form
    30,437.31/45,655.97 = 8,250.69/x
  3. Step 3: Cross multiply
    30,437.31x = 45,655.97 × 8,250.69
  4. Step 4: Simplify right side
    30,437.31x = 376,693,159.20
  5. Step 5: Solve for x
    x = 376,693,159.20/30,437.31
  6. Step 6: Final answer
    x = 12,376.03

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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.