Home / 21,282.22-31,926.15-11,292.07

Finding the Fourth Proportional to 21,282.22, 31,926.15 and 11,292.07

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Solution

The fourth proportional to 21,282.22, 31,926.15 and 11,292.07 is: 16,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.22 : 31,926.15 = 11,292.07 : x
  2. Step 2: Convert to fraction form
    21,282.22/31,926.15 = 11,292.07/x
  3. Step 3: Cross multiply
    21,282.22x = 31,926.15 × 11,292.07
  4. Step 4: Simplify right side
    21,282.22x = 360,512,320.63
  5. Step 5: Solve for x
    x = 360,512,320.63/21,282.22
  6. Step 6: Final answer
    x = 16,939.60

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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.