Home / 28,072.24-42,079.08-11,425.60

Finding the Fourth Proportional to 28,072.24, 42,079.08 and 11,425.60

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Solution

The fourth proportional to 28,072.24, 42,079.08 and 11,425.60 is: 17,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.24 : 42,079.08 = 11,425.60 : x
  2. Step 2: Convert to fraction form
    28,072.24/42,079.08 = 11,425.60/x
  3. Step 3: Cross multiply
    28,072.24x = 42,079.08 × 11,425.60
  4. Step 4: Simplify right side
    28,072.24x = 480,778,736.45
  5. Step 5: Solve for x
    x = 480,778,736.45/28,072.24
  6. Step 6: Final answer
    x = 17,126.48

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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.