Home / 28,561.31-39,414.59-15,986.06

Finding the Fourth Proportional to 28,561.31, 39,414.59 and 15,986.06

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Solution

The fourth proportional to 28,561.31, 39,414.59 and 15,986.06 is: 22,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.31 : 39,414.59 = 15,986.06 : x
  2. Step 2: Convert to fraction form
    28,561.31/39,414.59 = 15,986.06/x
  3. Step 3: Cross multiply
    28,561.31x = 39,414.59 × 15,986.06
  4. Step 4: Simplify right side
    28,561.31x = 630,083,803.54
  5. Step 5: Solve for x
    x = 630,083,803.54/28,561.31
  6. Step 6: Final answer
    x = 22,060.75

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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.