Home / 49,901.68-74,803.38-20,340.28

Finding the Fourth Proportional to 49,901.68, 74,803.38 and 20,340.28

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Solution

The fourth proportional to 49,901.68, 74,803.38 and 20,340.28 is: 30,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,901.68 : 74,803.38 = 20,340.28 : x
  2. Step 2: Convert to fraction form
    49,901.68/74,803.38 = 20,340.28/x
  3. Step 3: Cross multiply
    49,901.68x = 74,803.38 × 20,340.28
  4. Step 4: Simplify right side
    49,901.68x = 1,521,521,694.15
  5. Step 5: Solve for x
    x = 1,521,521,694.15/49,901.68
  6. Step 6: Final answer
    x = 30,490.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.