Home / 39,675.68-54,752.29-21,770.99

Finding the Fourth Proportional to 39,675.68, 54,752.29 and 21,770.99

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Solution

The fourth proportional to 39,675.68, 54,752.29 and 21,770.99 is: 30,043.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,675.68 : 54,752.29 = 21,770.99 : x
  2. Step 2: Convert to fraction form
    39,675.68/54,752.29 = 21,770.99/x
  3. Step 3: Cross multiply
    39,675.68x = 54,752.29 × 21,770.99
  4. Step 4: Simplify right side
    39,675.68x = 1,192,011,284.31
  5. Step 5: Solve for x
    x = 1,192,011,284.31/39,675.68
  6. Step 6: Final answer
    x = 30,043.88

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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.