Home / 20,474.04-28,253.82-11,521.51

Finding the Fourth Proportional to 20,474.04, 28,253.82 and 11,521.51

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Solution

The fourth proportional to 20,474.04, 28,253.82 and 11,521.51 is: 15,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.04 : 28,253.82 = 11,521.51 : x
  2. Step 2: Convert to fraction form
    20,474.04/28,253.82 = 11,521.51/x
  3. Step 3: Cross multiply
    20,474.04x = 28,253.82 × 11,521.51
  4. Step 4: Simplify right side
    20,474.04x = 325,526,669.67
  5. Step 5: Solve for x
    x = 325,526,669.67/20,474.04
  6. Step 6: Final answer
    x = 15,899.48

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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.