Home / 20,470.41-30,648.66-10,453.51

Finding the Fourth Proportional to 20,470.41, 30,648.66 and 10,453.51

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Solution

The fourth proportional to 20,470.41, 30,648.66 and 10,453.51 is: 15,651.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470.41 : 30,648.66 = 10,453.51 : x
  2. Step 2: Convert to fraction form
    20,470.41/30,648.66 = 10,453.51/x
  3. Step 3: Cross multiply
    20,470.41x = 30,648.66 × 10,453.51
  4. Step 4: Simplify right side
    20,470.41x = 320,386,073.80
  5. Step 5: Solve for x
    x = 320,386,073.80/20,470.41
  6. Step 6: Final answer
    x = 15,651.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.