Home / 28,687.95-39,585.92-15,941.07

Finding the Fourth Proportional to 28,687.95, 39,585.92 and 15,941.07

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Solution

The fourth proportional to 28,687.95, 39,585.92 and 15,941.07 is: 21,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.95 : 39,585.92 = 15,941.07 : x
  2. Step 2: Convert to fraction form
    28,687.95/39,585.92 = 15,941.07/x
  3. Step 3: Cross multiply
    28,687.95x = 39,585.92 × 15,941.07
  4. Step 4: Simplify right side
    28,687.95x = 631,041,842.03
  5. Step 5: Solve for x
    x = 631,041,842.03/28,687.95
  6. Step 6: Final answer
    x = 21,996.76

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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.