Home / 22,990.67-31,723.59-12,917.18

Finding the Fourth Proportional to 22,990.67, 31,723.59 and 12,917.18

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Solution

The fourth proportional to 22,990.67, 31,723.59 and 12,917.18 is: 17,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.67 : 31,723.59 = 12,917.18 : x
  2. Step 2: Convert to fraction form
    22,990.67/31,723.59 = 12,917.18/x
  3. Step 3: Cross multiply
    22,990.67x = 31,723.59 × 12,917.18
  4. Step 4: Simplify right side
    22,990.67x = 409,779,198.92
  5. Step 5: Solve for x
    x = 409,779,198.92/22,990.67
  6. Step 6: Final answer
    x = 17,823.72

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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.