Home / 38,343.50-52,915.20-20,881.97

Finding the Fourth Proportional to 38,343.50, 52,915.20 and 20,881.97

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Solution

The fourth proportional to 38,343.50, 52,915.20 and 20,881.97 is: 28,817.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,343.50 : 52,915.20 = 20,881.97 : x
  2. Step 2: Convert to fraction form
    38,343.50/52,915.20 = 20,881.97/x
  3. Step 3: Cross multiply
    38,343.50x = 52,915.20 × 20,881.97
  4. Step 4: Simplify right side
    38,343.50x = 1,104,973,618.94
  5. Step 5: Solve for x
    x = 1,104,973,618.94/38,343.50
  6. Step 6: Final answer
    x = 28,817.76

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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.