Home / 28,494.24-39,319.20-15,916.56

Finding the Fourth Proportional to 28,494.24, 39,319.20 and 15,916.56

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Solution

The fourth proportional to 28,494.24, 39,319.20 and 15,916.56 is: 21,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,494.24 : 39,319.20 = 15,916.56 : x
  2. Step 2: Convert to fraction form
    28,494.24/39,319.20 = 15,916.56/x
  3. Step 3: Cross multiply
    28,494.24x = 39,319.20 × 15,916.56
  4. Step 4: Simplify right side
    28,494.24x = 625,826,405.95
  5. Step 5: Solve for x
    x = 625,826,405.95/28,494.24
  6. Step 6: Final answer
    x = 21,963.26

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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.