Home / 22,272.93-30,722.45-15,556.12

Finding the Fourth Proportional to 22,272.93, 30,722.45 and 15,556.12

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Solution

The fourth proportional to 22,272.93, 30,722.45 and 15,556.12 is: 21,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.93 : 30,722.45 = 15,556.12 : x
  2. Step 2: Convert to fraction form
    22,272.93/30,722.45 = 15,556.12/x
  3. Step 3: Cross multiply
    22,272.93x = 30,722.45 × 15,556.12
  4. Step 4: Simplify right side
    22,272.93x = 477,921,964.31
  5. Step 5: Solve for x
    x = 477,921,964.31/22,272.93
  6. Step 6: Final answer
    x = 21,457.53

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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.