Home / 28,876.91-39,852.81-17,543.79

Finding the Fourth Proportional to 28,876.91, 39,852.81 and 17,543.79

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Solution

The fourth proportional to 28,876.91, 39,852.81 and 17,543.79 is: 24,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.91 : 39,852.81 = 17,543.79 : x
  2. Step 2: Convert to fraction form
    28,876.91/39,852.81 = 17,543.79/x
  3. Step 3: Cross multiply
    28,876.91x = 39,852.81 × 17,543.79
  4. Step 4: Simplify right side
    28,876.91x = 699,169,329.55
  5. Step 5: Solve for x
    x = 699,169,329.55/28,876.91
  6. Step 6: Final answer
    x = 24,212.06

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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.