Home / 22,836.47-31,520.54-13,408.07

Finding the Fourth Proportional to 22,836.47, 31,520.54 and 13,408.07

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Solution

The fourth proportional to 22,836.47, 31,520.54 and 13,408.07 is: 18,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,836.47 : 31,520.54 = 13,408.07 : x
  2. Step 2: Convert to fraction form
    22,836.47/31,520.54 = 13,408.07/x
  3. Step 3: Cross multiply
    22,836.47x = 31,520.54 × 13,408.07
  4. Step 4: Simplify right side
    22,836.47x = 422,629,482.68
  5. Step 5: Solve for x
    x = 422,629,482.68/22,836.47
  6. Step 6: Final answer
    x = 18,506.78

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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.