Home / 25,983.91-38,991.24-10,990.18

Finding the Fourth Proportional to 25,983.91, 38,991.24 and 10,990.18

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Solution

The fourth proportional to 25,983.91, 38,991.24 and 10,990.18 is: 16,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.91 : 38,991.24 = 10,990.18 : x
  2. Step 2: Convert to fraction form
    25,983.91/38,991.24 = 10,990.18/x
  3. Step 3: Cross multiply
    25,983.91x = 38,991.24 × 10,990.18
  4. Step 4: Simplify right side
    25,983.91x = 428,520,746.02
  5. Step 5: Solve for x
    x = 428,520,746.02/25,983.91
  6. Step 6: Final answer
    x = 16,491.77

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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.