Home / 16,677.20-25,015.80-15,316.40

Finding the Fourth Proportional to 16,677.20, 25,015.80 and 15,316.40

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Solution

The fourth proportional to 16,677.20, 25,015.80 and 15,316.40 is: 22,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,677.20 : 25,015.80 = 15,316.40 : x
  2. Step 2: Convert to fraction form
    16,677.20/25,015.80 = 15,316.40/x
  3. Step 3: Cross multiply
    16,677.20x = 25,015.80 × 15,316.40
  4. Step 4: Simplify right side
    16,677.20x = 383,151,999.12
  5. Step 5: Solve for x
    x = 383,151,999.12/16,677.20
  6. Step 6: Final answer
    x = 22,974.60

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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.