Home / 39,046.57-53,884.04-21,141.20

Finding the Fourth Proportional to 39,046.57, 53,884.04 and 21,141.20

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Solution

The fourth proportional to 39,046.57, 53,884.04 and 21,141.20 is: 29,174.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,046.57 : 53,884.04 = 21,141.20 : x
  2. Step 2: Convert to fraction form
    39,046.57/53,884.04 = 21,141.20/x
  3. Step 3: Cross multiply
    39,046.57x = 53,884.04 × 21,141.20
  4. Step 4: Simplify right side
    39,046.57x = 1,139,173,295.45
  5. Step 5: Solve for x
    x = 1,139,173,295.45/39,046.57
  6. Step 6: Final answer
    x = 29,174.74

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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.