Home / 28,215.23-42,234.59-18,206.59

Finding the Fourth Proportional to 28,215.23, 42,234.59 and 18,206.59

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Solution

The fourth proportional to 28,215.23, 42,234.59 and 18,206.59 is: 27,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.23 : 42,234.59 = 18,206.59 : x
  2. Step 2: Convert to fraction form
    28,215.23/42,234.59 = 18,206.59/x
  3. Step 3: Cross multiply
    28,215.23x = 42,234.59 × 18,206.59
  4. Step 4: Simplify right side
    28,215.23x = 768,947,863.95
  5. Step 5: Solve for x
    x = 768,947,863.95/28,215.23
  6. Step 6: Final answer
    x = 27,252.94

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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.