Home / 37,982.20-52,418.50-20,987.93

Finding the Fourth Proportional to 37,982.20, 52,418.50 and 20,987.93

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Solution

The fourth proportional to 37,982.20, 52,418.50 and 20,987.93 is: 28,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,982.20 : 52,418.50 = 20,987.93 : x
  2. Step 2: Convert to fraction form
    37,982.20/52,418.50 = 20,987.93/x
  3. Step 3: Cross multiply
    37,982.20x = 52,418.50 × 20,987.93
  4. Step 4: Simplify right side
    37,982.20x = 1,100,155,808.71
  5. Step 5: Solve for x
    x = 1,100,155,808.71/37,982.20
  6. Step 6: Final answer
    x = 28,965.04

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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.