Home / 23,431.20-32,335.29-12,821.28

Finding the Fourth Proportional to 23,431.20, 32,335.29 and 12,821.28

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Solution

The fourth proportional to 23,431.20, 32,335.29 and 12,821.28 is: 17,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,431.20 : 32,335.29 = 12,821.28 : x
  2. Step 2: Convert to fraction form
    23,431.20/32,335.29 = 12,821.28/x
  3. Step 3: Cross multiply
    23,431.20x = 32,335.29 × 12,821.28
  4. Step 4: Simplify right side
    23,431.20x = 414,579,806.97
  5. Step 5: Solve for x
    x = 414,579,806.97/23,431.20
  6. Step 6: Final answer
    x = 17,693.49

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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.