Home / 28,821.04-39,772.28-16,245.52

Finding the Fourth Proportional to 28,821.04, 39,772.28 and 16,245.52

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Solution

The fourth proportional to 28,821.04, 39,772.28 and 16,245.52 is: 22,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.04 : 39,772.28 = 16,245.52 : x
  2. Step 2: Convert to fraction form
    28,821.04/39,772.28 = 16,245.52/x
  3. Step 3: Cross multiply
    28,821.04x = 39,772.28 × 16,245.52
  4. Step 4: Simplify right side
    28,821.04x = 646,121,370.19
  5. Step 5: Solve for x
    x = 646,121,370.19/28,821.04
  6. Step 6: Final answer
    x = 22,418.39

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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.