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Finding the Fourth Proportional to 38,476.80, 57,715.20 and 35,998.20

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Solution

The fourth proportional to 38,476.80, 57,715.20 and 35,998.20 is: 53,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,476.80 : 57,715.20 = 35,998.20 : x
  2. Step 2: Convert to fraction form
    38,476.80/57,715.20 = 35,998.20/x
  3. Step 3: Cross multiply
    38,476.80x = 57,715.20 × 35,998.20
  4. Step 4: Simplify right side
    38,476.80x = 2,077,643,312.64
  5. Step 5: Solve for x
    x = 2,077,643,312.64/38,476.80
  6. Step 6: Final answer
    x = 53,997.30

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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.