Home / 18,934.46-28,217.12-18,364.40

Finding the Fourth Proportional to 18,934.46, 28,217.12 and 18,364.40

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Solution

The fourth proportional to 18,934.46, 28,217.12 and 18,364.40 is: 27,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.46 : 28,217.12 = 18,364.40 : x
  2. Step 2: Convert to fraction form
    18,934.46/28,217.12 = 18,364.40/x
  3. Step 3: Cross multiply
    18,934.46x = 28,217.12 × 18,364.40
  4. Step 4: Simplify right side
    18,934.46x = 518,190,478.53
  5. Step 5: Solve for x
    x = 518,190,478.53/18,934.46
  6. Step 6: Final answer
    x = 27,367.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.