Home / 20,494.13-30,721.21-10,498.86

Finding the Fourth Proportional to 20,494.13, 30,721.21 and 10,498.86

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Solution

The fourth proportional to 20,494.13, 30,721.21 and 10,498.86 is: 15,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.13 : 30,721.21 = 10,498.86 : x
  2. Step 2: Convert to fraction form
    20,494.13/30,721.21 = 10,498.86/x
  3. Step 3: Cross multiply
    20,494.13x = 30,721.21 × 10,498.86
  4. Step 4: Simplify right side
    20,494.13x = 322,537,656.57
  5. Step 5: Solve for x
    x = 322,537,656.57/20,494.13
  6. Step 6: Final answer
    x = 15,738.05

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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.