Home / 27,669.42-38,172.52-19,290.78

Finding the Fourth Proportional to 27,669.42, 38,172.52 and 19,290.78

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Solution

The fourth proportional to 27,669.42, 38,172.52 and 19,290.78 is: 26,613.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,669.42 : 38,172.52 = 19,290.78 : x
  2. Step 2: Convert to fraction form
    27,669.42/38,172.52 = 19,290.78/x
  3. Step 3: Cross multiply
    27,669.42x = 38,172.52 × 19,290.78
  4. Step 4: Simplify right side
    27,669.42x = 736,377,685.37
  5. Step 5: Solve for x
    x = 736,377,685.37/27,669.42
  6. Step 6: Final answer
    x = 26,613.41

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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.