Home / 39,109.98-53,971.11-22,113.96

Finding the Fourth Proportional to 39,109.98, 53,971.11 and 22,113.96

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Solution

The fourth proportional to 39,109.98, 53,971.11 and 22,113.96 is: 30,516.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109.98 : 53,971.11 = 22,113.96 : x
  2. Step 2: Convert to fraction form
    39,109.98/53,971.11 = 22,113.96/x
  3. Step 3: Cross multiply
    39,109.98x = 53,971.11 × 22,113.96
  4. Step 4: Simplify right side
    39,109.98x = 1,193,514,967.70
  5. Step 5: Solve for x
    x = 1,193,514,967.70/39,109.98
  6. Step 6: Final answer
    x = 30,516.89

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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.