Home / 28,251.32-38,987.01-16,314.62

Finding the Fourth Proportional to 28,251.32, 38,987.01 and 16,314.62

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Solution

The fourth proportional to 28,251.32, 38,987.01 and 16,314.62 is: 22,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.32 : 38,987.01 = 16,314.62 : x
  2. Step 2: Convert to fraction form
    28,251.32/38,987.01 = 16,314.62/x
  3. Step 3: Cross multiply
    28,251.32x = 38,987.01 × 16,314.62
  4. Step 4: Simplify right side
    28,251.32x = 636,058,058.15
  5. Step 5: Solve for x
    x = 636,058,058.15/28,251.32
  6. Step 6: Final answer
    x = 22,514.28

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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.