Home / 28,400.51-39,192.09-16,465.97

Finding the Fourth Proportional to 28,400.51, 39,192.09 and 16,465.97

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Solution

The fourth proportional to 28,400.51, 39,192.09 and 16,465.97 is: 22,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.51 : 39,192.09 = 16,465.97 : x
  2. Step 2: Convert to fraction form
    28,400.51/39,192.09 = 16,465.97/x
  3. Step 3: Cross multiply
    28,400.51x = 39,192.09 × 16,465.97
  4. Step 4: Simplify right side
    28,400.51x = 645,335,582.22
  5. Step 5: Solve for x
    x = 645,335,582.22/28,400.51
  6. Step 6: Final answer
    x = 22,722.68

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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.