Home / 23,431.80-32,335.88-12,821.43

Finding the Fourth Proportional to 23,431.80, 32,335.88 and 12,821.43

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Solution

The fourth proportional to 23,431.80, 32,335.88 and 12,821.43 is: 17,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,431.80 : 32,335.88 = 12,821.43 : x
  2. Step 2: Convert to fraction form
    23,431.80/32,335.88 = 12,821.43/x
  3. Step 3: Cross multiply
    23,431.80x = 32,335.88 × 12,821.43
  4. Step 4: Simplify right side
    23,431.80x = 414,592,221.91
  5. Step 5: Solve for x
    x = 414,592,221.91/23,431.80
  6. Step 6: Final answer
    x = 17,693.57

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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.