Home / 37,915.68-52,323.82-20,920.12

Finding the Fourth Proportional to 37,915.68, 52,323.82 and 20,920.12

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Solution

The fourth proportional to 37,915.68, 52,323.82 and 20,920.12 is: 28,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,915.68 : 52,323.82 = 20,920.12 : x
  2. Step 2: Convert to fraction form
    37,915.68/52,323.82 = 20,920.12/x
  3. Step 3: Cross multiply
    37,915.68x = 52,323.82 × 20,920.12
  4. Step 4: Simplify right side
    37,915.68x = 1,094,620,593.26
  5. Step 5: Solve for x
    x = 1,094,620,593.26/37,915.68
  6. Step 6: Final answer
    x = 28,869.87

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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.