Home / 16,972.40-25,458.60-15,186.80

Finding the Fourth Proportional to 16,972.40, 25,458.60 and 15,186.80

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Solution

The fourth proportional to 16,972.40, 25,458.60 and 15,186.80 is: 22,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.40 : 25,458.60 = 15,186.80 : x
  2. Step 2: Convert to fraction form
    16,972.40/25,458.60 = 15,186.80/x
  3. Step 3: Cross multiply
    16,972.40x = 25,458.60 × 15,186.80
  4. Step 4: Simplify right side
    16,972.40x = 386,634,666.48
  5. Step 5: Solve for x
    x = 386,634,666.48/16,972.40
  6. Step 6: Final answer
    x = 22,780.20

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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.