Home / 22,857.12-31,545.44-12,788.11

Finding the Fourth Proportional to 22,857.12, 31,545.44 and 12,788.11

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Solution

The fourth proportional to 22,857.12, 31,545.44 and 12,788.11 is: 17,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.12 : 31,545.44 = 12,788.11 : x
  2. Step 2: Convert to fraction form
    22,857.12/31,545.44 = 12,788.11/x
  3. Step 3: Cross multiply
    22,857.12x = 31,545.44 × 12,788.11
  4. Step 4: Simplify right side
    22,857.12x = 403,406,556.72
  5. Step 5: Solve for x
    x = 403,406,556.72/22,857.12
  6. Step 6: Final answer
    x = 17,649.05

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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.