Home / 28,341.09-39,104.78-16,403.72

Finding the Fourth Proportional to 28,341.09, 39,104.78 and 16,403.72

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Solution

The fourth proportional to 28,341.09, 39,104.78 and 16,403.72 is: 22,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.09 : 39,104.78 = 16,403.72 : x
  2. Step 2: Convert to fraction form
    28,341.09/39,104.78 = 16,403.72/x
  3. Step 3: Cross multiply
    28,341.09x = 39,104.78 × 16,403.72
  4. Step 4: Simplify right side
    28,341.09x = 641,463,584.24
  5. Step 5: Solve for x
    x = 641,463,584.24/28,341.09
  6. Step 6: Final answer
    x = 22,633.69

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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.