Home / 39,595.99-54,642.48-21,691.66

Finding the Fourth Proportional to 39,595.99, 54,642.48 and 21,691.66

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Solution

The fourth proportional to 39,595.99, 54,642.48 and 21,691.66 is: 29,934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595.99 : 54,642.48 = 21,691.66 : x
  2. Step 2: Convert to fraction form
    39,595.99/54,642.48 = 21,691.66/x
  3. Step 3: Cross multiply
    39,595.99x = 54,642.48 × 21,691.66
  4. Step 4: Simplify right side
    39,595.99x = 1,185,286,097.72
  5. Step 5: Solve for x
    x = 1,185,286,097.72/39,595.99
  6. Step 6: Final answer
    x = 29,934.50

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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.