Home / 28,341.96-39,113.46-15,766.44

Finding the Fourth Proportional to 28,341.96, 39,113.46 and 15,766.44

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Solution

The fourth proportional to 28,341.96, 39,113.46 and 15,766.44 is: 21,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.96 : 39,113.46 = 15,766.44 : x
  2. Step 2: Convert to fraction form
    28,341.96/39,113.46 = 15,766.44/x
  3. Step 3: Cross multiply
    28,341.96x = 39,113.46 × 15,766.44
  4. Step 4: Simplify right side
    28,341.96x = 616,680,020.28
  5. Step 5: Solve for x
    x = 616,680,020.28/28,341.96
  6. Step 6: Final answer
    x = 21,758.55

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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.