Home / 20,543.59-28,367.43-13,003.22

Finding the Fourth Proportional to 20,543.59, 28,367.43 and 13,003.22

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Solution

The fourth proportional to 20,543.59, 28,367.43 and 13,003.22 is: 17,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.59 : 28,367.43 = 13,003.22 : x
  2. Step 2: Convert to fraction form
    20,543.59/28,367.43 = 13,003.22/x
  3. Step 3: Cross multiply
    20,543.59x = 28,367.43 × 13,003.22
  4. Step 4: Simplify right side
    20,543.59x = 368,867,933.12
  5. Step 5: Solve for x
    x = 368,867,933.12/20,543.59
  6. Step 6: Final answer
    x = 17,955.38

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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.