Home / 23,099.70-31,877.59-12,489.33

Finding the Fourth Proportional to 23,099.70, 31,877.59 and 12,489.33

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Solution

The fourth proportional to 23,099.70, 31,877.59 and 12,489.33 is: 17,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,099.70 : 31,877.59 = 12,489.33 : x
  2. Step 2: Convert to fraction form
    23,099.70/31,877.59 = 12,489.33/x
  3. Step 3: Cross multiply
    23,099.70x = 31,877.59 × 12,489.33
  4. Step 4: Simplify right side
    23,099.70x = 398,129,741.11
  5. Step 5: Solve for x
    x = 398,129,741.11/23,099.70
  6. Step 6: Final answer
    x = 17,235.28

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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.