Home / 39,010.85-53,834.98-21,105.85

Finding the Fourth Proportional to 39,010.85, 53,834.98 and 21,105.85

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Solution

The fourth proportional to 39,010.85, 53,834.98 and 21,105.85 is: 29,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,010.85 : 53,834.98 = 21,105.85 : x
  2. Step 2: Convert to fraction form
    39,010.85/53,834.98 = 21,105.85/x
  3. Step 3: Cross multiply
    39,010.85x = 53,834.98 × 21,105.85
  4. Step 4: Simplify right side
    39,010.85x = 1,136,232,743.46
  5. Step 5: Solve for x
    x = 1,136,232,743.46/39,010.85
  6. Step 6: Final answer
    x = 29,126.07

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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.