Home / 28,868.40-43,303.82-9,147.74

Finding the Fourth Proportional to 28,868.40, 43,303.82 and 9,147.74

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Solution

The fourth proportional to 28,868.40, 43,303.82 and 9,147.74 is: 13,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.40 : 43,303.82 = 9,147.74 : x
  2. Step 2: Convert to fraction form
    28,868.40/43,303.82 = 9,147.74/x
  3. Step 3: Cross multiply
    28,868.40x = 43,303.82 × 9,147.74
  4. Step 4: Simplify right side
    28,868.40x = 396,131,824.11
  5. Step 5: Solve for x
    x = 396,131,824.11/28,868.40
  6. Step 6: Final answer
    x = 13,721.99

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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.