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Finding the Fourth Proportional to 29,375.30, 40,617.65 and 28,900.51

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Solution

The fourth proportional to 29,375.30, 40,617.65 and 28,900.51 is: 39,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,375.30 : 40,617.65 = 28,900.51 : x
  2. Step 2: Convert to fraction form
    29,375.30/40,617.65 = 28,900.51/x
  3. Step 3: Cross multiply
    29,375.30x = 40,617.65 × 28,900.51
  4. Step 4: Simplify right side
    29,375.30x = 1,173,870,770.71
  5. Step 5: Solve for x
    x = 1,173,870,770.71/29,375.30
  6. Step 6: Final answer
    x = 39,961.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.