Home / 28,226.14-38,943.21-16,287.91

Finding the Fourth Proportional to 28,226.14, 38,943.21 and 16,287.91

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Solution

The fourth proportional to 28,226.14, 38,943.21 and 16,287.91 is: 22,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.14 : 38,943.21 = 16,287.91 : x
  2. Step 2: Convert to fraction form
    28,226.14/38,943.21 = 16,287.91/x
  3. Step 3: Cross multiply
    28,226.14x = 38,943.21 × 16,287.91
  4. Step 4: Simplify right side
    28,226.14x = 634,303,499.59
  5. Step 5: Solve for x
    x = 634,303,499.59/28,226.14
  6. Step 6: Final answer
    x = 22,472.20

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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.