Home / 22,990.03-31,727.18-12,918.44

Finding the Fourth Proportional to 22,990.03, 31,727.18 and 12,918.44

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Solution

The fourth proportional to 22,990.03, 31,727.18 and 12,918.44 is: 17,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.03 : 31,727.18 = 12,918.44 : x
  2. Step 2: Convert to fraction form
    22,990.03/31,727.18 = 12,918.44/x
  3. Step 3: Cross multiply
    22,990.03x = 31,727.18 × 12,918.44
  4. Step 4: Simplify right side
    22,990.03x = 409,865,671.20
  5. Step 5: Solve for x
    x = 409,865,671.20/22,990.03
  6. Step 6: Final answer
    x = 17,827.97

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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.