Home / 16,784.80-25,177.20-15,517.60

Finding the Fourth Proportional to 16,784.80, 25,177.20 and 15,517.60

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Solution

The fourth proportional to 16,784.80, 25,177.20 and 15,517.60 is: 23,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,784.80 : 25,177.20 = 15,517.60 : x
  2. Step 2: Convert to fraction form
    16,784.80/25,177.20 = 15,517.60/x
  3. Step 3: Cross multiply
    16,784.80x = 25,177.20 × 15,517.60
  4. Step 4: Simplify right side
    16,784.80x = 390,689,718.72
  5. Step 5: Solve for x
    x = 390,689,718.72/16,784.80
  6. Step 6: Final answer
    x = 23,276.40

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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.