Home / 39,716.32-54,809.49-21,567.82

Finding the Fourth Proportional to 39,716.32, 54,809.49 and 21,567.82

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Solution

The fourth proportional to 39,716.32, 54,809.49 and 21,567.82 is: 29,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,716.32 : 54,809.49 = 21,567.82 : x
  2. Step 2: Convert to fraction form
    39,716.32/54,809.49 = 21,567.82/x
  3. Step 3: Cross multiply
    39,716.32x = 54,809.49 × 21,567.82
  4. Step 4: Simplify right side
    39,716.32x = 1,182,121,214.61
  5. Step 5: Solve for x
    x = 1,182,121,214.61/39,716.32
  6. Step 6: Final answer
    x = 29,764.12

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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.