Home / 28,424.10-39,228.80-16,328.33

Finding the Fourth Proportional to 28,424.10, 39,228.80 and 16,328.33

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Solution

The fourth proportional to 28,424.10, 39,228.80 and 16,328.33 is: 22,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.10 : 39,228.80 = 16,328.33 : x
  2. Step 2: Convert to fraction form
    28,424.10/39,228.80 = 16,328.33/x
  3. Step 3: Cross multiply
    28,424.10x = 39,228.80 × 16,328.33
  4. Step 4: Simplify right side
    28,424.10x = 640,540,514.12
  5. Step 5: Solve for x
    x = 640,540,514.12/28,424.10
  6. Step 6: Final answer
    x = 22,535.12

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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.