Home / 18,870.40-25,972.41-16,617.52

Finding the Fourth Proportional to 18,870.40, 25,972.41 and 16,617.52

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Solution

The fourth proportional to 18,870.40, 25,972.41 and 16,617.52 is: 22,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.40 : 25,972.41 = 16,617.52 : x
  2. Step 2: Convert to fraction form
    18,870.40/25,972.41 = 16,617.52/x
  3. Step 3: Cross multiply
    18,870.40x = 25,972.41 × 16,617.52
  4. Step 4: Simplify right side
    18,870.40x = 431,597,042.62
  5. Step 5: Solve for x
    x = 431,597,042.62/18,870.40
  6. Step 6: Final answer
    x = 22,871.64

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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.