Home / 28,377.71-39,162.25-17,628.47

Finding the Fourth Proportional to 28,377.71, 39,162.25 and 17,628.47

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Solution

The fourth proportional to 28,377.71, 39,162.25 and 17,628.47 is: 24,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.71 : 39,162.25 = 17,628.47 : x
  2. Step 2: Convert to fraction form
    28,377.71/39,162.25 = 17,628.47/x
  3. Step 3: Cross multiply
    28,377.71x = 39,162.25 × 17,628.47
  4. Step 4: Simplify right side
    28,377.71x = 690,370,522.34
  5. Step 5: Solve for x
    x = 690,370,522.34/28,377.71
  6. Step 6: Final answer
    x = 24,327.92

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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.