Home / 23,115.20-34,672.80-9,982.40

Finding the Fourth Proportional to 23,115.20, 34,672.80 and 9,982.40

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Solution

The fourth proportional to 23,115.20, 34,672.80 and 9,982.40 is: 14,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.20 : 34,672.80 = 9,982.40 : x
  2. Step 2: Convert to fraction form
    23,115.20/34,672.80 = 9,982.40/x
  3. Step 3: Cross multiply
    23,115.20x = 34,672.80 × 9,982.40
  4. Step 4: Simplify right side
    23,115.20x = 346,117,758.72
  5. Step 5: Solve for x
    x = 346,117,758.72/23,115.20
  6. Step 6: Final answer
    x = 14,973.60

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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.