Home / 28,068.45-38,734.22-15,493.20

Finding the Fourth Proportional to 28,068.45, 38,734.22 and 15,493.20

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Solution

The fourth proportional to 28,068.45, 38,734.22 and 15,493.20 is: 21,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.45 : 38,734.22 = 15,493.20 : x
  2. Step 2: Convert to fraction form
    28,068.45/38,734.22 = 15,493.20/x
  3. Step 3: Cross multiply
    28,068.45x = 38,734.22 × 15,493.20
  4. Step 4: Simplify right side
    28,068.45x = 600,117,056.04
  5. Step 5: Solve for x
    x = 600,117,056.04/28,068.45
  6. Step 6: Final answer
    x = 21,380.48

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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.