Home / 28,193.16-38,906.54-15,447.14

Finding the Fourth Proportional to 28,193.16, 38,906.54 and 15,447.14

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Solution

The fourth proportional to 28,193.16, 38,906.54 and 15,447.14 is: 21,317.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.16 : 38,906.54 = 15,447.14 : x
  2. Step 2: Convert to fraction form
    28,193.16/38,906.54 = 15,447.14/x
  3. Step 3: Cross multiply
    28,193.16x = 38,906.54 × 15,447.14
  4. Step 4: Simplify right side
    28,193.16x = 600,994,898.67
  5. Step 5: Solve for x
    x = 600,994,898.67/28,193.16
  6. Step 6: Final answer
    x = 21,317.04

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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.