Home / 22,780.04-31,439.91-13,825.81

Finding the Fourth Proportional to 22,780.04, 31,439.91 and 13,825.81

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Solution

The fourth proportional to 22,780.04, 31,439.91 and 13,825.81 is: 19,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.04 : 31,439.91 = 13,825.81 : x
  2. Step 2: Convert to fraction form
    22,780.04/31,439.91 = 13,825.81/x
  3. Step 3: Cross multiply
    22,780.04x = 31,439.91 × 13,825.81
  4. Step 4: Simplify right side
    22,780.04x = 434,682,222.08
  5. Step 5: Solve for x
    x = 434,682,222.08/22,780.04
  6. Step 6: Final answer
    x = 19,081.71

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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.