Home / 35,403.28-48,857.68-20,298.80

Finding the Fourth Proportional to 35,403.28, 48,857.68 and 20,298.80

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Solution

The fourth proportional to 35,403.28, 48,857.68 and 20,298.80 is: 28,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,403.28 : 48,857.68 = 20,298.80 : x
  2. Step 2: Convert to fraction form
    35,403.28/48,857.68 = 20,298.80/x
  3. Step 3: Cross multiply
    35,403.28x = 48,857.68 × 20,298.80
  4. Step 4: Simplify right side
    35,403.28x = 991,752,274.78
  5. Step 5: Solve for x
    x = 991,752,274.78/35,403.28
  6. Step 6: Final answer
    x = 28,013.01

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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.