Home / 28,250.18-38,984.73-15,674.66

Finding the Fourth Proportional to 28,250.18, 38,984.73 and 15,674.66

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Solution

The fourth proportional to 28,250.18, 38,984.73 and 15,674.66 is: 21,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.18 : 38,984.73 = 15,674.66 : x
  2. Step 2: Convert to fraction form
    28,250.18/38,984.73 = 15,674.66/x
  3. Step 3: Cross multiply
    28,250.18x = 38,984.73 × 15,674.66
  4. Step 4: Simplify right side
    28,250.18x = 611,072,387.94
  5. Step 5: Solve for x
    x = 611,072,387.94/28,250.18
  6. Step 6: Final answer
    x = 21,630.74

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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.