Home / 28,499.86-39,329.71-15,924.61

Finding the Fourth Proportional to 28,499.86, 39,329.71 and 15,924.61

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Solution

The fourth proportional to 28,499.86, 39,329.71 and 15,924.61 is: 21,975.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.86 : 39,329.71 = 15,924.61 : x
  2. Step 2: Convert to fraction form
    28,499.86/39,329.71 = 15,924.61/x
  3. Step 3: Cross multiply
    28,499.86x = 39,329.71 × 15,924.61
  4. Step 4: Simplify right side
    28,499.86x = 626,310,293.16
  5. Step 5: Solve for x
    x = 626,310,293.16/28,499.86
  6. Step 6: Final answer
    x = 21,975.91

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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.