Home / 23,158.03-31,958.11-12,547.66

Finding the Fourth Proportional to 23,158.03, 31,958.11 and 12,547.66

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Solution

The fourth proportional to 23,158.03, 31,958.11 and 12,547.66 is: 17,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,158.03 : 31,958.11 = 12,547.66 : x
  2. Step 2: Convert to fraction form
    23,158.03/31,958.11 = 12,547.66/x
  3. Step 3: Cross multiply
    23,158.03x = 31,958.11 × 12,547.66
  4. Step 4: Simplify right side
    23,158.03x = 400,999,387.26
  5. Step 5: Solve for x
    x = 400,999,387.26/23,158.03
  6. Step 6: Final answer
    x = 17,315.78

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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.