Home / 28,560.93-39,414.08-15,985.68

Finding the Fourth Proportional to 28,560.93, 39,414.08 and 15,985.68

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Solution

The fourth proportional to 28,560.93, 39,414.08 and 15,985.68 is: 22,060.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.93 : 39,414.08 = 15,985.68 : x
  2. Step 2: Convert to fraction form
    28,560.93/39,414.08 = 15,985.68/x
  3. Step 3: Cross multiply
    28,560.93x = 39,414.08 × 15,985.68
  4. Step 4: Simplify right side
    28,560.93x = 630,060,790.45
  5. Step 5: Solve for x
    x = 630,060,790.45/28,560.93
  6. Step 6: Final answer
    x = 22,060.23

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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.