Home / 22,616.77-31,214.41-13,665.56

Finding the Fourth Proportional to 22,616.77, 31,214.41 and 13,665.56

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Solution

The fourth proportional to 22,616.77, 31,214.41 and 13,665.56 is: 18,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.77 : 31,214.41 = 13,665.56 : x
  2. Step 2: Convert to fraction form
    22,616.77/31,214.41 = 13,665.56/x
  3. Step 3: Cross multiply
    22,616.77x = 31,214.41 × 13,665.56
  4. Step 4: Simplify right side
    22,616.77x = 426,562,454.93
  5. Step 5: Solve for x
    x = 426,562,454.93/22,616.77
  6. Step 6: Final answer
    x = 18,860.45

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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.