Home / 22,990.16-31,694.28-19,439.12

Finding the Fourth Proportional to 22,990.16, 31,694.28 and 19,439.12

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Solution

The fourth proportional to 22,990.16, 31,694.28 and 19,439.12 is: 26,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.16 : 31,694.28 = 19,439.12 : x
  2. Step 2: Convert to fraction form
    22,990.16/31,694.28 = 19,439.12/x
  3. Step 3: Cross multiply
    22,990.16x = 31,694.28 × 19,439.12
  4. Step 4: Simplify right side
    22,990.16x = 616,108,912.23
  5. Step 5: Solve for x
    x = 616,108,912.23/22,990.16
  6. Step 6: Final answer
    x = 26,798.81

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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.