Home / 23,181.24-31,989.78-12,570.66

Finding the Fourth Proportional to 23,181.24, 31,989.78 and 12,570.66

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Solution

The fourth proportional to 23,181.24, 31,989.78 and 12,570.66 is: 17,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.24 : 31,989.78 = 12,570.66 : x
  2. Step 2: Convert to fraction form
    23,181.24/31,989.78 = 12,570.66/x
  3. Step 3: Cross multiply
    23,181.24x = 31,989.78 × 12,570.66
  4. Step 4: Simplify right side
    23,181.24x = 402,132,647.85
  5. Step 5: Solve for x
    x = 402,132,647.85/23,181.24
  6. Step 6: Final answer
    x = 17,347.33

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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.