Home / 28,425.42-39,227.00-15,850.17

Finding the Fourth Proportional to 28,425.42, 39,227.00 and 15,850.17

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Solution

The fourth proportional to 28,425.42, 39,227.00 and 15,850.17 is: 21,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.42 : 39,227.00 = 15,850.17 : x
  2. Step 2: Convert to fraction form
    28,425.42/39,227.00 = 15,850.17/x
  3. Step 3: Cross multiply
    28,425.42x = 39,227.00 × 15,850.17
  4. Step 4: Simplify right side
    28,425.42x = 621,754,539.34
  5. Step 5: Solve for x
    x = 621,754,539.34/28,425.42
  6. Step 6: Final answer
    x = 21,873.19

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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.