Home / 22,786.86-31,452.47-13,228.89

Finding the Fourth Proportional to 22,786.86, 31,452.47 and 13,228.89

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Solution

The fourth proportional to 22,786.86, 31,452.47 and 13,228.89 is: 18,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,786.86 : 31,452.47 = 13,228.89 : x
  2. Step 2: Convert to fraction form
    22,786.86/31,452.47 = 13,228.89/x
  3. Step 3: Cross multiply
    22,786.86x = 31,452.47 × 13,228.89
  4. Step 4: Simplify right side
    22,786.86x = 416,081,199.71
  5. Step 5: Solve for x
    x = 416,081,199.71/22,786.86
  6. Step 6: Final answer
    x = 18,259.70

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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.