Home / 28,514.44-39,349.51-15,767.34

Finding the Fourth Proportional to 28,514.44, 39,349.51 and 15,767.34

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Solution

The fourth proportional to 28,514.44, 39,349.51 and 15,767.34 is: 21,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.44 : 39,349.51 = 15,767.34 : x
  2. Step 2: Convert to fraction form
    28,514.44/39,349.51 = 15,767.34/x
  3. Step 3: Cross multiply
    28,514.44x = 39,349.51 × 15,767.34
  4. Step 4: Simplify right side
    28,514.44x = 620,437,142.42
  5. Step 5: Solve for x
    x = 620,437,142.42/28,514.44
  6. Step 6: Final answer
    x = 21,758.70

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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.