Home / 39,430.67-54,414.05-21,525.66

Finding the Fourth Proportional to 39,430.67, 54,414.05 and 21,525.66

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Solution

The fourth proportional to 39,430.67, 54,414.05 and 21,525.66 is: 29,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.67 : 54,414.05 = 21,525.66 : x
  2. Step 2: Convert to fraction form
    39,430.67/54,414.05 = 21,525.66/x
  3. Step 3: Cross multiply
    39,430.67x = 54,414.05 × 21,525.66
  4. Step 4: Simplify right side
    39,430.67x = 1,171,298,231.89
  5. Step 5: Solve for x
    x = 1,171,298,231.89/39,430.67
  6. Step 6: Final answer
    x = 29,705.26

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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.