Home / 23,478.24-32,400.12-12,723.30

Finding the Fourth Proportional to 23,478.24, 32,400.12 and 12,723.30

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Solution

The fourth proportional to 23,478.24, 32,400.12 and 12,723.30 is: 17,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,478.24 : 32,400.12 = 12,723.30 : x
  2. Step 2: Convert to fraction form
    23,478.24/32,400.12 = 12,723.30/x
  3. Step 3: Cross multiply
    23,478.24x = 32,400.12 × 12,723.30
  4. Step 4: Simplify right side
    23,478.24x = 412,236,446.80
  5. Step 5: Solve for x
    x = 412,236,446.80/23,478.24
  6. Step 6: Final answer
    x = 17,558.23

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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.