Home / 22,990.74-31,727.24-12,919.18

Finding the Fourth Proportional to 22,990.74, 31,727.24 and 12,919.18

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Solution

The fourth proportional to 22,990.74, 31,727.24 and 12,919.18 is: 17,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.74 : 31,727.24 = 12,919.18 : x
  2. Step 2: Convert to fraction form
    22,990.74/31,727.24 = 12,919.18/x
  3. Step 3: Cross multiply
    22,990.74x = 31,727.24 × 12,919.18
  4. Step 4: Simplify right side
    22,990.74x = 409,889,924.46
  5. Step 5: Solve for x
    x = 409,889,924.46/22,990.74
  6. Step 6: Final answer
    x = 17,828.48

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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.