Home / 39,165.49-54,048.77-21,260.64

Finding the Fourth Proportional to 39,165.49, 54,048.77 and 21,260.64

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Solution

The fourth proportional to 39,165.49, 54,048.77 and 21,260.64 is: 29,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.49 : 54,048.77 = 21,260.64 : x
  2. Step 2: Convert to fraction form
    39,165.49/54,048.77 = 21,260.64/x
  3. Step 3: Cross multiply
    39,165.49x = 54,048.77 × 21,260.64
  4. Step 4: Simplify right side
    39,165.49x = 1,149,111,617.52
  5. Step 5: Solve for x
    x = 1,149,111,617.52/39,165.49
  6. Step 6: Final answer
    x = 29,339.90

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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.