Home / 22,811.16-31,488.30-13,860.12

Finding the Fourth Proportional to 22,811.16, 31,488.30 and 13,860.12

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Solution

The fourth proportional to 22,811.16, 31,488.30 and 13,860.12 is: 19,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,811.16 : 31,488.30 = 13,860.12 : x
  2. Step 2: Convert to fraction form
    22,811.16/31,488.30 = 13,860.12/x
  3. Step 3: Cross multiply
    22,811.16x = 31,488.30 × 13,860.12
  4. Step 4: Simplify right side
    22,811.16x = 436,431,616.60
  5. Step 5: Solve for x
    x = 436,431,616.60/22,811.16
  6. Step 6: Final answer
    x = 19,132.37

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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.