Home / 39,008.85-53,832.22-21,103.85

Finding the Fourth Proportional to 39,008.85, 53,832.22 and 21,103.85

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Solution

The fourth proportional to 39,008.85, 53,832.22 and 21,103.85 is: 29,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,008.85 : 53,832.22 = 21,103.85 : x
  2. Step 2: Convert to fraction form
    39,008.85/53,832.22 = 21,103.85/x
  3. Step 3: Cross multiply
    39,008.85x = 53,832.22 × 21,103.85
  4. Step 4: Simplify right side
    39,008.85x = 1,136,066,774.13
  5. Step 5: Solve for x
    x = 1,136,066,774.13/39,008.85
  6. Step 6: Final answer
    x = 29,123.31

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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.