Home / 25,871.40-38,807.10-17,998.20

Finding the Fourth Proportional to 25,871.40, 38,807.10 and 17,998.20

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Solution

The fourth proportional to 25,871.40, 38,807.10 and 17,998.20 is: 26,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.40 : 38,807.10 = 17,998.20 : x
  2. Step 2: Convert to fraction form
    25,871.40/38,807.10 = 17,998.20/x
  3. Step 3: Cross multiply
    25,871.40x = 38,807.10 × 17,998.20
  4. Step 4: Simplify right side
    25,871.40x = 698,457,947.22
  5. Step 5: Solve for x
    x = 698,457,947.22/25,871.40
  6. Step 6: Final answer
    x = 26,997.30

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Similar ratio
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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.