Home / 20,559.01-28,370.86-11,484.13

Finding the Fourth Proportional to 20,559.01, 28,370.86 and 11,484.13

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Solution

The fourth proportional to 20,559.01, 28,370.86 and 11,484.13 is: 15,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.01 : 28,370.86 = 11,484.13 : x
  2. Step 2: Convert to fraction form
    20,559.01/28,370.86 = 11,484.13/x
  3. Step 3: Cross multiply
    20,559.01x = 28,370.86 × 11,484.13
  4. Step 4: Simplify right side
    20,559.01x = 325,814,644.45
  5. Step 5: Solve for x
    x = 325,814,644.45/20,559.01
  6. Step 6: Final answer
    x = 15,847.78

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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.