Home / 23,429.40-32,331.92-12,818.80

Finding the Fourth Proportional to 23,429.40, 32,331.92 and 12,818.80

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Solution

The fourth proportional to 23,429.40, 32,331.92 and 12,818.80 is: 17,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,429.40 : 32,331.92 = 12,818.80 : x
  2. Step 2: Convert to fraction form
    23,429.40/32,331.92 = 12,818.80/x
  3. Step 3: Cross multiply
    23,429.40x = 32,331.92 × 12,818.80
  4. Step 4: Simplify right side
    23,429.40x = 414,456,416.10
  5. Step 5: Solve for x
    x = 414,456,416.10/23,429.40
  6. Step 6: Final answer
    x = 17,689.59

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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.