Home / 28,733.28-39,652.41-15,987.48

Finding the Fourth Proportional to 28,733.28, 39,652.41 and 15,987.48

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Solution

The fourth proportional to 28,733.28, 39,652.41 and 15,987.48 is: 22,062.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,733.28 : 39,652.41 = 15,987.48 : x
  2. Step 2: Convert to fraction form
    28,733.28/39,652.41 = 15,987.48/x
  3. Step 3: Cross multiply
    28,733.28x = 39,652.41 × 15,987.48
  4. Step 4: Simplify right side
    28,733.28x = 633,942,111.83
  5. Step 5: Solve for x
    x = 633,942,111.83/28,733.28
  6. Step 6: Final answer
    x = 22,062.99

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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.