Home / 28,370.52-39,145.68-15,792.84

Finding the Fourth Proportional to 28,370.52, 39,145.68 and 15,792.84

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Solution

The fourth proportional to 28,370.52, 39,145.68 and 15,792.84 is: 21,790.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.52 : 39,145.68 = 15,792.84 : x
  2. Step 2: Convert to fraction form
    28,370.52/39,145.68 = 15,792.84/x
  3. Step 3: Cross multiply
    28,370.52x = 39,145.68 × 15,792.84
  4. Step 4: Simplify right side
    28,370.52x = 618,221,460.93
  5. Step 5: Solve for x
    x = 618,221,460.93/28,370.52
  6. Step 6: Final answer
    x = 21,790.98

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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.