Home / 22,661.20-31,302.36-18,896.68

Finding the Fourth Proportional to 22,661.20, 31,302.36 and 18,896.68

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Solution

The fourth proportional to 22,661.20, 31,302.36 and 18,896.68 is: 26,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.20 : 31,302.36 = 18,896.68 : x
  2. Step 2: Convert to fraction form
    22,661.20/31,302.36 = 18,896.68/x
  3. Step 3: Cross multiply
    22,661.20x = 31,302.36 × 18,896.68
  4. Step 4: Simplify right side
    22,661.20x = 591,510,680.16
  5. Step 5: Solve for x
    x = 591,510,680.16/22,661.20
  6. Step 6: Final answer
    x = 26,102.35

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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.