Home / 21,272.36-31,926.98-21,223.16

Finding the Fourth Proportional to 21,272.36, 31,926.98 and 21,223.16

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Solution

The fourth proportional to 21,272.36, 31,926.98 and 21,223.16 is: 31,853.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.36 : 31,926.98 = 21,223.16 : x
  2. Step 2: Convert to fraction form
    21,272.36/31,926.98 = 21,223.16/x
  3. Step 3: Cross multiply
    21,272.36x = 31,926.98 × 21,223.16
  4. Step 4: Simplify right side
    21,272.36x = 677,591,404.86
  5. Step 5: Solve for x
    x = 677,591,404.86/21,272.36
  6. Step 6: Final answer
    x = 31,853.14

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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.