Home / 28,633.49-39,514.05-15,886.55

Finding the Fourth Proportional to 28,633.49, 39,514.05 and 15,886.55

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Solution

The fourth proportional to 28,633.49, 39,514.05 and 15,886.55 is: 21,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.49 : 39,514.05 = 15,886.55 : x
  2. Step 2: Convert to fraction form
    28,633.49/39,514.05 = 15,886.55/x
  3. Step 3: Cross multiply
    28,633.49x = 39,514.05 × 15,886.55
  4. Step 4: Simplify right side
    28,633.49x = 627,741,733.46
  5. Step 5: Solve for x
    x = 627,741,733.46/28,633.49
  6. Step 6: Final answer
    x = 21,923.34

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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.