Home / 20,332.36-28,066.42-18,204.13

Finding the Fourth Proportional to 20,332.36, 28,066.42 and 18,204.13

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Solution

The fourth proportional to 20,332.36, 28,066.42 and 18,204.13 is: 25,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.36 : 28,066.42 = 18,204.13 : x
  2. Step 2: Convert to fraction form
    20,332.36/28,066.42 = 18,204.13/x
  3. Step 3: Cross multiply
    20,332.36x = 28,066.42 × 18,204.13
  4. Step 4: Simplify right side
    20,332.36x = 510,924,713.75
  5. Step 5: Solve for x
    x = 510,924,713.75/20,332.36
  6. Step 6: Final answer
    x = 25,128.65

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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.