Home / 35,492.20-48,979.13-20,385.84

Finding the Fourth Proportional to 35,492.20, 48,979.13 and 20,385.84

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Solution

The fourth proportional to 35,492.20, 48,979.13 and 20,385.84 is: 28,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,492.20 : 48,979.13 = 20,385.84 : x
  2. Step 2: Convert to fraction form
    35,492.20/48,979.13 = 20,385.84/x
  3. Step 3: Cross multiply
    35,492.20x = 48,979.13 × 20,385.84
  4. Step 4: Simplify right side
    35,492.20x = 998,480,707.52
  5. Step 5: Solve for x
    x = 998,480,707.52/35,492.20
  6. Step 6: Final answer
    x = 28,132.40

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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.