Home / 28,627.91-39,506.76-15,881.93

Finding the Fourth Proportional to 28,627.91, 39,506.76 and 15,881.93

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Solution

The fourth proportional to 28,627.91, 39,506.76 and 15,881.93 is: 21,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627.91 : 39,506.76 = 15,881.93 : x
  2. Step 2: Convert to fraction form
    28,627.91/39,506.76 = 15,881.93/x
  3. Step 3: Cross multiply
    28,627.91x = 39,506.76 × 15,881.93
  4. Step 4: Simplify right side
    28,627.91x = 627,443,319.90
  5. Step 5: Solve for x
    x = 627,443,319.90/28,627.91
  6. Step 6: Final answer
    x = 21,917.19

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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.