Home / 37,979.13-52,411.75-20,983.76

Finding the Fourth Proportional to 37,979.13, 52,411.75 and 20,983.76

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Solution

The fourth proportional to 37,979.13, 52,411.75 and 20,983.76 is: 28,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,979.13 : 52,411.75 = 20,983.76 : x
  2. Step 2: Convert to fraction form
    37,979.13/52,411.75 = 20,983.76/x
  3. Step 3: Cross multiply
    37,979.13x = 52,411.75 × 20,983.76
  4. Step 4: Simplify right side
    37,979.13x = 1,099,795,720.68
  5. Step 5: Solve for x
    x = 1,099,795,720.68/37,979.13
  6. Step 6: Final answer
    x = 28,957.90

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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.