Home / 28,349.06-39,126.50-16,419.65

Finding the Fourth Proportional to 28,349.06, 39,126.50 and 16,419.65

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Solution

The fourth proportional to 28,349.06, 39,126.50 and 16,419.65 is: 22,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.06 : 39,126.50 = 16,419.65 : x
  2. Step 2: Convert to fraction form
    28,349.06/39,126.50 = 16,419.65/x
  3. Step 3: Cross multiply
    28,349.06x = 39,126.50 × 16,419.65
  4. Step 4: Simplify right side
    28,349.06x = 642,443,435.73
  5. Step 5: Solve for x
    x = 642,443,435.73/28,349.06
  6. Step 6: Final answer
    x = 22,661.90

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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.