Home / 20,225.66-27,912.06-11,275.07

Finding the Fourth Proportional to 20,225.66, 27,912.06 and 11,275.07

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Solution

The fourth proportional to 20,225.66, 27,912.06 and 11,275.07 is: 15,559.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.66 : 27,912.06 = 11,275.07 : x
  2. Step 2: Convert to fraction form
    20,225.66/27,912.06 = 11,275.07/x
  3. Step 3: Cross multiply
    20,225.66x = 27,912.06 × 11,275.07
  4. Step 4: Simplify right side
    20,225.66x = 314,710,290.78
  5. Step 5: Solve for x
    x = 314,710,290.78/20,225.66
  6. Step 6: Final answer
    x = 15,559.96

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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.