Home / 28,146.75-42,222.06-9,426.03

Finding the Fourth Proportional to 28,146.75, 42,222.06 and 9,426.03

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Solution

The fourth proportional to 28,146.75, 42,222.06 and 9,426.03 is: 14,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.75 : 42,222.06 = 9,426.03 : x
  2. Step 2: Convert to fraction form
    28,146.75/42,222.06 = 9,426.03/x
  3. Step 3: Cross multiply
    28,146.75x = 42,222.06 × 9,426.03
  4. Step 4: Simplify right side
    28,146.75x = 397,986,404.22
  5. Step 5: Solve for x
    x = 397,986,404.22/28,146.75
  6. Step 6: Final answer
    x = 14,139.69

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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.