Home / 28,223.04-38,941-16,120.44

Finding the Fourth Proportional to 28,223.04, 38,941 and 16,120.44

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Solution

The fourth proportional to 28,223.04, 38,941 and 16,120.44 is: 22,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.04 : 38,941 = 16,120.44 : x
  2. Step 2: Convert to fraction form
    28,223.04/38,941 = 16,120.44/x
  3. Step 3: Cross multiply
    28,223.04x = 38,941 × 16,120.44
  4. Step 4: Simplify right side
    28,223.04x = 627,746,054.04
  5. Step 5: Solve for x
    x = 627,746,054.04/28,223.04
  6. Step 6: Final answer
    x = 22,242.33

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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.