Home / 35,135.28-48,478.20-20,795.76

Finding the Fourth Proportional to 35,135.28, 48,478.20 and 20,795.76

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Solution

The fourth proportional to 35,135.28, 48,478.20 and 20,795.76 is: 28,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,135.28 : 48,478.20 = 20,795.76 : x
  2. Step 2: Convert to fraction form
    35,135.28/48,478.20 = 20,795.76/x
  3. Step 3: Cross multiply
    35,135.28x = 48,478.20 × 20,795.76
  4. Step 4: Simplify right side
    35,135.28x = 1,008,141,012.43
  5. Step 5: Solve for x
    x = 1,008,141,012.43/35,135.28
  6. Step 6: Final answer
    x = 28,693.13

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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.