Home / 19,868.22-27,418.77-10,915.92

Finding the Fourth Proportional to 19,868.22, 27,418.77 and 10,915.92

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Solution

The fourth proportional to 19,868.22, 27,418.77 and 10,915.92 is: 15,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.22 : 27,418.77 = 10,915.92 : x
  2. Step 2: Convert to fraction form
    19,868.22/27,418.77 = 10,915.92/x
  3. Step 3: Cross multiply
    19,868.22x = 27,418.77 × 10,915.92
  4. Step 4: Simplify right side
    19,868.22x = 299,301,099.82
  5. Step 5: Solve for x
    x = 299,301,099.82/19,868.22
  6. Step 6: Final answer
    x = 15,064.31

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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.