Home / 22,391.33-30,904.45-12,837.63

Finding the Fourth Proportional to 22,391.33, 30,904.45 and 12,837.63

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Solution

The fourth proportional to 22,391.33, 30,904.45 and 12,837.63 is: 17,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.33 : 30,904.45 = 12,837.63 : x
  2. Step 2: Convert to fraction form
    22,391.33/30,904.45 = 12,837.63/x
  3. Step 3: Cross multiply
    22,391.33x = 30,904.45 × 12,837.63
  4. Step 4: Simplify right side
    22,391.33x = 396,739,862.36
  5. Step 5: Solve for x
    x = 396,739,862.36/22,391.33
  6. Step 6: Final answer
    x = 17,718.46

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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.