Home / 28,206.33-42,315.08-12,624.09

Finding the Fourth Proportional to 28,206.33, 42,315.08 and 12,624.09

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Solution

The fourth proportional to 28,206.33, 42,315.08 and 12,624.09 is: 18,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.33 : 42,315.08 = 12,624.09 : x
  2. Step 2: Convert to fraction form
    28,206.33/42,315.08 = 12,624.09/x
  3. Step 3: Cross multiply
    28,206.33x = 42,315.08 × 12,624.09
  4. Step 4: Simplify right side
    28,206.33x = 534,189,315.16
  5. Step 5: Solve for x
    x = 534,189,315.16/28,206.33
  6. Step 6: Final answer
    x = 18,938.63

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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.