Home / 28,151.56-38,853.18-16,213.72

Finding the Fourth Proportional to 28,151.56, 38,853.18 and 16,213.72

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Solution

The fourth proportional to 28,151.56, 38,853.18 and 16,213.72 is: 22,377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.56 : 38,853.18 = 16,213.72 : x
  2. Step 2: Convert to fraction form
    28,151.56/38,853.18 = 16,213.72/x
  3. Step 3: Cross multiply
    28,151.56x = 38,853.18 × 16,213.72
  4. Step 4: Simplify right side
    28,151.56x = 629,954,581.63
  5. Step 5: Solve for x
    x = 629,954,581.63/28,151.56
  6. Step 6: Final answer
    x = 22,377.25

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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.