Home / 17,942.64-24,760.20-9,985.20

Finding the Fourth Proportional to 17,942.64, 24,760.20 and 9,985.20

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Solution

The fourth proportional to 17,942.64, 24,760.20 and 9,985.20 is: 13,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,942.64 : 24,760.20 = 9,985.20 : x
  2. Step 2: Convert to fraction form
    17,942.64/24,760.20 = 9,985.20/x
  3. Step 3: Cross multiply
    17,942.64x = 24,760.20 × 9,985.20
  4. Step 4: Simplify right side
    17,942.64x = 247,235,549.04
  5. Step 5: Solve for x
    x = 247,235,549.04/17,942.64
  6. Step 6: Final answer
    x = 13,779.22

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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.