Home / 21,951.36-32,862.78-13,606.20

Finding the Fourth Proportional to 21,951.36, 32,862.78 and 13,606.20

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Solution

The fourth proportional to 21,951.36, 32,862.78 and 13,606.20 is: 20,369.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.36 : 32,862.78 = 13,606.20 : x
  2. Step 2: Convert to fraction form
    21,951.36/32,862.78 = 13,606.20/x
  3. Step 3: Cross multiply
    21,951.36x = 32,862.78 × 13,606.20
  4. Step 4: Simplify right side
    21,951.36x = 447,137,557.24
  5. Step 5: Solve for x
    x = 447,137,557.24/21,951.36
  6. Step 6: Final answer
    x = 20,369.47

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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.