Home / 28,170.77-38,876.49-15,595.52

Finding the Fourth Proportional to 28,170.77, 38,876.49 and 15,595.52

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Solution

The fourth proportional to 28,170.77, 38,876.49 and 15,595.52 is: 21,522.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.77 : 38,876.49 = 15,595.52 : x
  2. Step 2: Convert to fraction form
    28,170.77/38,876.49 = 15,595.52/x
  3. Step 3: Cross multiply
    28,170.77x = 38,876.49 × 15,595.52
  4. Step 4: Simplify right side
    28,170.77x = 606,298,882.94
  5. Step 5: Solve for x
    x = 606,298,882.94/28,170.77
  6. Step 6: Final answer
    x = 21,522.27

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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.