Home / 38,143.56-52,637.45-20,915.92

Finding the Fourth Proportional to 38,143.56, 52,637.45 and 20,915.92

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Solution

The fourth proportional to 38,143.56, 52,637.45 and 20,915.92 is: 28,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.56 : 52,637.45 = 20,915.92 : x
  2. Step 2: Convert to fraction form
    38,143.56/52,637.45 = 20,915.92/x
  3. Step 3: Cross multiply
    38,143.56x = 52,637.45 × 20,915.92
  4. Step 4: Simplify right side
    38,143.56x = 1,100,960,654.42
  5. Step 5: Solve for x
    x = 1,100,960,654.42/38,143.56
  6. Step 6: Final answer
    x = 28,863.61

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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.