Home / 20,023.56-27,632.10-11,070.78

Finding the Fourth Proportional to 20,023.56, 27,632.10 and 11,070.78

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Solution

The fourth proportional to 20,023.56, 27,632.10 and 11,070.78 is: 15,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.56 : 27,632.10 = 11,070.78 : x
  2. Step 2: Convert to fraction form
    20,023.56/27,632.10 = 11,070.78/x
  3. Step 3: Cross multiply
    20,023.56x = 27,632.10 × 11,070.78
  4. Step 4: Simplify right side
    20,023.56x = 305,908,900.04
  5. Step 5: Solve for x
    x = 305,908,900.04/20,023.56
  6. Step 6: Final answer
    x = 15,277.45

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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.