Home / 28,175.34-38,881.97-15,600.90

Finding the Fourth Proportional to 28,175.34, 38,881.97 and 15,600.90

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Solution

The fourth proportional to 28,175.34, 38,881.97 and 15,600.90 is: 21,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.34 : 38,881.97 = 15,600.90 : x
  2. Step 2: Convert to fraction form
    28,175.34/38,881.97 = 15,600.90/x
  3. Step 3: Cross multiply
    28,175.34x = 38,881.97 × 15,600.90
  4. Step 4: Simplify right side
    28,175.34x = 606,593,939.83
  5. Step 5: Solve for x
    x = 606,593,939.83/28,175.34
  6. Step 6: Final answer
    x = 21,529.25

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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.