Home / 39,249.64-54,165.54-21,345.70

Finding the Fourth Proportional to 39,249.64, 54,165.54 and 21,345.70

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Solution

The fourth proportional to 39,249.64, 54,165.54 and 21,345.70 is: 29,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,249.64 : 54,165.54 = 21,345.70 : x
  2. Step 2: Convert to fraction form
    39,249.64/54,165.54 = 21,345.70/x
  3. Step 3: Cross multiply
    39,249.64x = 54,165.54 × 21,345.70
  4. Step 4: Simplify right side
    39,249.64x = 1,156,201,367.18
  5. Step 5: Solve for x
    x = 1,156,201,367.18/39,249.64
  6. Step 6: Final answer
    x = 29,457.63

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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.