Home / 22,059.90-30,430.33-13,556.11

Finding the Fourth Proportional to 22,059.90, 30,430.33 and 13,556.11

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Solution

The fourth proportional to 22,059.90, 30,430.33 and 13,556.11 is: 18,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,059.90 : 30,430.33 = 13,556.11 : x
  2. Step 2: Convert to fraction form
    22,059.90/30,430.33 = 13,556.11/x
  3. Step 3: Cross multiply
    22,059.90x = 30,430.33 × 13,556.11
  4. Step 4: Simplify right side
    22,059.90x = 412,516,900.82
  5. Step 5: Solve for x
    x = 412,516,900.82/22,059.90
  6. Step 6: Final answer
    x = 18,699.85

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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.