Home / 31,343.94-43,258.44-17,915.76

Finding the Fourth Proportional to 31,343.94, 43,258.44 and 17,915.76

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Solution

The fourth proportional to 31,343.94, 43,258.44 and 17,915.76 is: 24,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.94 : 43,258.44 = 17,915.76 : x
  2. Step 2: Convert to fraction form
    31,343.94/43,258.44 = 17,915.76/x
  3. Step 3: Cross multiply
    31,343.94x = 43,258.44 × 17,915.76
  4. Step 4: Simplify right side
    31,343.94x = 775,007,829.01
  5. Step 5: Solve for x
    x = 775,007,829.01/31,343.94
  6. Step 6: Final answer
    x = 24,725.92

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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.