Home / 28,081.42-38,752.22-15,506.17

Finding the Fourth Proportional to 28,081.42, 38,752.22 and 15,506.17

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Solution

The fourth proportional to 28,081.42, 38,752.22 and 15,506.17 is: 21,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.42 : 38,752.22 = 15,506.17 : x
  2. Step 2: Convert to fraction form
    28,081.42/38,752.22 = 15,506.17/x
  3. Step 3: Cross multiply
    28,081.42x = 38,752.22 × 15,506.17
  4. Step 4: Simplify right side
    28,081.42x = 600,898,511.20
  5. Step 5: Solve for x
    x = 600,898,511.20/28,081.42
  6. Step 6: Final answer
    x = 21,398.44

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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.