Home / 20,258.68-27,958.38-11,307.93

Finding the Fourth Proportional to 20,258.68, 27,958.38 and 11,307.93

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Solution

The fourth proportional to 20,258.68, 27,958.38 and 11,307.93 is: 15,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.68 : 27,958.38 = 11,307.93 : x
  2. Step 2: Convert to fraction form
    20,258.68/27,958.38 = 11,307.93/x
  3. Step 3: Cross multiply
    20,258.68x = 27,958.38 × 11,307.93
  4. Step 4: Simplify right side
    20,258.68x = 316,151,403.95
  5. Step 5: Solve for x
    x = 316,151,403.95/20,258.68
  6. Step 6: Final answer
    x = 15,605.73

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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.