Home / 20,448.41-30,623.40-13,854.61

Finding the Fourth Proportional to 20,448.41, 30,623.40 and 13,854.61

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Solution

The fourth proportional to 20,448.41, 30,623.40 and 13,854.61 is: 20,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.41 : 30,623.40 = 13,854.61 : x
  2. Step 2: Convert to fraction form
    20,448.41/30,623.40 = 13,854.61/x
  3. Step 3: Cross multiply
    20,448.41x = 30,623.40 × 13,854.61
  4. Step 4: Simplify right side
    20,448.41x = 424,275,129.90
  5. Step 5: Solve for x
    x = 424,275,129.90/20,448.41
  6. Step 6: Final answer
    x = 20,748.56

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1.5x scale

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.