Home / 28,541.97-39,425.57-21,909.56

Finding the Fourth Proportional to 28,541.97, 39,425.57 and 21,909.56

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Solution

The fourth proportional to 28,541.97, 39,425.57 and 21,909.56 is: 30,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.97 : 39,425.57 = 21,909.56 : x
  2. Step 2: Convert to fraction form
    28,541.97/39,425.57 = 21,909.56/x
  3. Step 3: Cross multiply
    28,541.97x = 39,425.57 × 21,909.56
  4. Step 4: Simplify right side
    28,541.97x = 863,796,666.93
  5. Step 5: Solve for x
    x = 863,796,666.93/28,541.97
  6. Step 6: Final answer
    x = 30,264.09

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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.