Home / 28,426.28-39,244.30-19,710.68

Finding the Fourth Proportional to 28,426.28, 39,244.30 and 19,710.68

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Solution

The fourth proportional to 28,426.28, 39,244.30 and 19,710.68 is: 27,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426.28 : 39,244.30 = 19,710.68 : x
  2. Step 2: Convert to fraction form
    28,426.28/39,244.30 = 19,710.68/x
  3. Step 3: Cross multiply
    28,426.28x = 39,244.30 × 19,710.68
  4. Step 4: Simplify right side
    28,426.28x = 773,531,593.63
  5. Step 5: Solve for x
    x = 773,531,593.63/28,426.28
  6. Step 6: Final answer
    x = 27,211.85

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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.