Home / 28,470.35-39,305.48-18,923.18

Finding the Fourth Proportional to 28,470.35, 39,305.48 and 18,923.18

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Solution

The fourth proportional to 28,470.35, 39,305.48 and 18,923.18 is: 26,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.35 : 39,305.48 = 18,923.18 : x
  2. Step 2: Convert to fraction form
    28,470.35/39,305.48 = 18,923.18/x
  3. Step 3: Cross multiply
    28,470.35x = 39,305.48 × 18,923.18
  4. Step 4: Simplify right side
    28,470.35x = 743,784,578.41
  5. Step 5: Solve for x
    x = 743,784,578.41/28,470.35
  6. Step 6: Final answer
    x = 26,124.88

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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.