Home / 28,118.39-38,802.23-16,182.15

Finding the Fourth Proportional to 28,118.39, 38,802.23 and 16,182.15

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Solution

The fourth proportional to 28,118.39, 38,802.23 and 16,182.15 is: 22,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.39 : 38,802.23 = 16,182.15 : x
  2. Step 2: Convert to fraction form
    28,118.39/38,802.23 = 16,182.15/x
  3. Step 3: Cross multiply
    28,118.39x = 38,802.23 × 16,182.15
  4. Step 4: Simplify right side
    28,118.39x = 627,903,425.28
  5. Step 5: Solve for x
    x = 627,903,425.28/28,118.39
  6. Step 6: Final answer
    x = 22,330.71

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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.