Home / 23,099.66-31,877.60-12,489.36

Finding the Fourth Proportional to 23,099.66, 31,877.60 and 12,489.36

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Solution

The fourth proportional to 23,099.66, 31,877.60 and 12,489.36 is: 17,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,099.66 : 31,877.60 = 12,489.36 : x
  2. Step 2: Convert to fraction form
    23,099.66/31,877.60 = 12,489.36/x
  3. Step 3: Cross multiply
    23,099.66x = 31,877.60 × 12,489.36
  4. Step 4: Simplify right side
    23,099.66x = 398,130,759.89
  5. Step 5: Solve for x
    x = 398,130,759.89/23,099.66
  6. Step 6: Final answer
    x = 17,235.36

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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.