Home / 21,919.08-32,886.88-13,160.10

Finding the Fourth Proportional to 21,919.08, 32,886.88 and 13,160.10

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Solution

The fourth proportional to 21,919.08, 32,886.88 and 13,160.10 is: 19,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919.08 : 32,886.88 = 13,160.10 : x
  2. Step 2: Convert to fraction form
    21,919.08/32,886.88 = 13,160.10/x
  3. Step 3: Cross multiply
    21,919.08x = 32,886.88 × 13,160.10
  4. Step 4: Simplify right side
    21,919.08x = 432,794,629.49
  5. Step 5: Solve for x
    x = 432,794,629.49/21,919.08
  6. Step 6: Final answer
    x = 19,745.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.