Home / 22,217.16-30,639.81-18,434.33

Finding the Fourth Proportional to 22,217.16, 30,639.81 and 18,434.33

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Solution

The fourth proportional to 22,217.16, 30,639.81 and 18,434.33 is: 25,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.16 : 30,639.81 = 18,434.33 : x
  2. Step 2: Convert to fraction form
    22,217.16/30,639.81 = 18,434.33/x
  3. Step 3: Cross multiply
    22,217.16x = 30,639.81 × 18,434.33
  4. Step 4: Simplify right side
    22,217.16x = 564,824,368.68
  5. Step 5: Solve for x
    x = 564,824,368.68/22,217.16
  6. Step 6: Final answer
    x = 25,422.89

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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.