Home / 18,772.20-28,109.70-14,851.80

Finding the Fourth Proportional to 18,772.20, 28,109.70 and 14,851.80

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Solution

The fourth proportional to 18,772.20, 28,109.70 and 14,851.80 is: 22,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.20 : 28,109.70 = 14,851.80 : x
  2. Step 2: Convert to fraction form
    18,772.20/28,109.70 = 14,851.80/x
  3. Step 3: Cross multiply
    18,772.20x = 28,109.70 × 14,851.80
  4. Step 4: Simplify right side
    18,772.20x = 417,479,642.46
  5. Step 5: Solve for x
    x = 417,479,642.46/18,772.20
  6. Step 6: Final answer
    x = 22,239.25

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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.