Home / 18,821.53-28,230.97-8,828.47

Finding the Fourth Proportional to 18,821.53, 28,230.97 and 8,828.47

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Solution

The fourth proportional to 18,821.53, 28,230.97 and 8,828.47 is: 13,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.53 : 28,230.97 = 8,828.47 : x
  2. Step 2: Convert to fraction form
    18,821.53/28,230.97 = 8,828.47/x
  3. Step 3: Cross multiply
    18,821.53x = 28,230.97 × 8,828.47
  4. Step 4: Simplify right side
    18,821.53x = 249,236,207.22
  5. Step 5: Solve for x
    x = 249,236,207.22/18,821.53
  6. Step 6: Final answer
    x = 13,242.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.