Home / 23,100.66-31,878.92-12,490.29

Finding the Fourth Proportional to 23,100.66, 31,878.92 and 12,490.29

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Solution

The fourth proportional to 23,100.66, 31,878.92 and 12,490.29 is: 17,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,100.66 : 31,878.92 = 12,490.29 : x
  2. Step 2: Convert to fraction form
    23,100.66/31,878.92 = 12,490.29/x
  3. Step 3: Cross multiply
    23,100.66x = 31,878.92 × 12,490.29
  4. Step 4: Simplify right side
    23,100.66x = 398,176,893.24
  5. Step 5: Solve for x
    x = 398,176,893.24/23,100.66
  6. Step 6: Final answer
    x = 17,236.60

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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.