Home / 20,066.12-27,661.73-15,277.70

Finding the Fourth Proportional to 20,066.12, 27,661.73 and 15,277.70

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Solution

The fourth proportional to 20,066.12, 27,661.73 and 15,277.70 is: 21,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.12 : 27,661.73 = 15,277.70 : x
  2. Step 2: Convert to fraction form
    20,066.12/27,661.73 = 15,277.70/x
  3. Step 3: Cross multiply
    20,066.12x = 27,661.73 × 15,277.70
  4. Step 4: Simplify right side
    20,066.12x = 422,607,612.42
  5. Step 5: Solve for x
    x = 422,607,612.42/20,066.12
  6. Step 6: Final answer
    x = 21,060.75

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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.