Home / 39,018.24-53,844.95-21,112.85

Finding the Fourth Proportional to 39,018.24, 53,844.95 and 21,112.85

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Solution

The fourth proportional to 39,018.24, 53,844.95 and 21,112.85 is: 29,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,018.24 : 53,844.95 = 21,112.85 : x
  2. Step 2: Convert to fraction form
    39,018.24/53,844.95 = 21,112.85/x
  3. Step 3: Cross multiply
    39,018.24x = 53,844.95 × 21,112.85
  4. Step 4: Simplify right side
    39,018.24x = 1,136,820,540.00
  5. Step 5: Solve for x
    x = 1,136,820,540.00/39,018.24
  6. Step 6: Final answer
    x = 29,135.62

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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.