Home / 39,010.89-53,834.88-21,105.90

Finding the Fourth Proportional to 39,010.89, 53,834.88 and 21,105.90

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Solution

The fourth proportional to 39,010.89, 53,834.88 and 21,105.90 is: 29,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,010.89 : 53,834.88 = 21,105.90 : x
  2. Step 2: Convert to fraction form
    39,010.89/53,834.88 = 21,105.90/x
  3. Step 3: Cross multiply
    39,010.89x = 53,834.88 × 21,105.90
  4. Step 4: Simplify right side
    39,010.89x = 1,136,233,593.79
  5. Step 5: Solve for x
    x = 1,136,233,593.79/39,010.89
  6. Step 6: Final answer
    x = 29,126.06

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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.