Home / 22,990.52-31,727.46-12,918.36

Finding the Fourth Proportional to 22,990.52, 31,727.46 and 12,918.36

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Solution

The fourth proportional to 22,990.52, 31,727.46 and 12,918.36 is: 17,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.52 : 31,727.46 = 12,918.36 : x
  2. Step 2: Convert to fraction form
    22,990.52/31,727.46 = 12,918.36/x
  3. Step 3: Cross multiply
    22,990.52x = 31,727.46 × 12,918.36
  4. Step 4: Simplify right side
    22,990.52x = 409,866,750.17
  5. Step 5: Solve for x
    x = 409,866,750.17/22,990.52
  6. Step 6: Final answer
    x = 17,827.65

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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.