Home / 28,091.64-42,125.76-11,440.38

Finding the Fourth Proportional to 28,091.64, 42,125.76 and 11,440.38

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Solution

The fourth proportional to 28,091.64, 42,125.76 and 11,440.38 is: 17,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.64 : 42,125.76 = 11,440.38 : x
  2. Step 2: Convert to fraction form
    28,091.64/42,125.76 = 11,440.38/x
  3. Step 3: Cross multiply
    28,091.64x = 42,125.76 × 11,440.38
  4. Step 4: Simplify right side
    28,091.64x = 481,934,702.19
  5. Step 5: Solve for x
    x = 481,934,702.19/28,091.64
  6. Step 6: Final answer
    x = 17,155.81

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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.