Home / 20,572.29-30,859.88-10,181.25

Finding the Fourth Proportional to 20,572.29, 30,859.88 and 10,181.25

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Solution

The fourth proportional to 20,572.29, 30,859.88 and 10,181.25 is: 15,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.29 : 30,859.88 = 10,181.25 : x
  2. Step 2: Convert to fraction form
    20,572.29/30,859.88 = 10,181.25/x
  3. Step 3: Cross multiply
    20,572.29x = 30,859.88 × 10,181.25
  4. Step 4: Simplify right side
    20,572.29x = 314,192,102.34
  5. Step 5: Solve for x
    x = 314,192,102.34/20,572.29
  6. Step 6: Final answer
    x = 15,272.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.