Home / 28,470.16-39,277.38-17,855.92

Finding the Fourth Proportional to 28,470.16, 39,277.38 and 17,855.92

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Solution

The fourth proportional to 28,470.16, 39,277.38 and 17,855.92 is: 24,633.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.16 : 39,277.38 = 17,855.92 : x
  2. Step 2: Convert to fraction form
    28,470.16/39,277.38 = 17,855.92/x
  3. Step 3: Cross multiply
    28,470.16x = 39,277.38 × 17,855.92
  4. Step 4: Simplify right side
    28,470.16x = 701,333,755.09
  5. Step 5: Solve for x
    x = 701,333,755.09/28,470.16
  6. Step 6: Final answer
    x = 24,633.99

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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.