Home / 38,519.42-53,151.46-21,521.53

Finding the Fourth Proportional to 38,519.42, 53,151.46 and 21,521.53

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Solution

The fourth proportional to 38,519.42, 53,151.46 and 21,521.53 is: 29,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.42 : 53,151.46 = 21,521.53 : x
  2. Step 2: Convert to fraction form
    38,519.42/53,151.46 = 21,521.53/x
  3. Step 3: Cross multiply
    38,519.42x = 53,151.46 × 21,521.53
  4. Step 4: Simplify right side
    38,519.42x = 1,143,900,740.93
  5. Step 5: Solve for x
    x = 1,143,900,740.93/38,519.42
  6. Step 6: Final answer
    x = 29,696.73

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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.