Home / 22,789.40-31,448.30-16,818.89

Finding the Fourth Proportional to 22,789.40, 31,448.30 and 16,818.89

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Solution

The fourth proportional to 22,789.40, 31,448.30 and 16,818.89 is: 23,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,789.40 : 31,448.30 = 16,818.89 : x
  2. Step 2: Convert to fraction form
    22,789.40/31,448.30 = 16,818.89/x
  3. Step 3: Cross multiply
    22,789.40x = 31,448.30 × 16,818.89
  4. Step 4: Simplify right side
    22,789.40x = 528,925,257.05
  5. Step 5: Solve for x
    x = 528,925,257.05/22,789.40
  6. Step 6: Final answer
    x = 23,209.27

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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.