Home / 28,447.62-39,257.44-15,700.92

Finding the Fourth Proportional to 28,447.62, 39,257.44 and 15,700.92

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Solution

The fourth proportional to 28,447.62, 39,257.44 and 15,700.92 is: 21,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.62 : 39,257.44 = 15,700.92 : x
  2. Step 2: Convert to fraction form
    28,447.62/39,257.44 = 15,700.92/x
  3. Step 3: Cross multiply
    28,447.62x = 39,257.44 × 15,700.92
  4. Step 4: Simplify right side
    28,447.62x = 616,377,924.84
  5. Step 5: Solve for x
    x = 616,377,924.84/28,447.62
  6. Step 6: Final answer
    x = 21,667.12

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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.