Home / 28,706.32-39,616.52-15,959.61

Finding the Fourth Proportional to 28,706.32, 39,616.52 and 15,959.61

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Solution

The fourth proportional to 28,706.32, 39,616.52 and 15,959.61 is: 22,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.32 : 39,616.52 = 15,959.61 : x
  2. Step 2: Convert to fraction form
    28,706.32/39,616.52 = 15,959.61/x
  3. Step 3: Cross multiply
    28,706.32x = 39,616.52 × 15,959.61
  4. Step 4: Simplify right side
    28,706.32x = 632,264,062.42
  5. Step 5: Solve for x
    x = 632,264,062.42/28,706.32
  6. Step 6: Final answer
    x = 22,025.25

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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.