Home / 22,621.51-31,216.93-13,667.44

Finding the Fourth Proportional to 22,621.51, 31,216.93 and 13,667.44

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Solution

The fourth proportional to 22,621.51, 31,216.93 and 13,667.44 is: 18,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.51 : 31,216.93 = 13,667.44 : x
  2. Step 2: Convert to fraction form
    22,621.51/31,216.93 = 13,667.44/x
  3. Step 3: Cross multiply
    22,621.51x = 31,216.93 × 13,667.44
  4. Step 4: Simplify right side
    22,621.51x = 426,655,517.76
  5. Step 5: Solve for x
    x = 426,655,517.76/22,621.51
  6. Step 6: Final answer
    x = 18,860.61

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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.