Home / 47,428.16-71,122.56-17,830.64

Finding the Fourth Proportional to 47,428.16, 71,122.56 and 17,830.64

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Solution

The fourth proportional to 47,428.16, 71,122.56 and 17,830.64 is: 26,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,428.16 : 71,122.56 = 17,830.64 : x
  2. Step 2: Convert to fraction form
    47,428.16/71,122.56 = 17,830.64/x
  3. Step 3: Cross multiply
    47,428.16x = 71,122.56 × 17,830.64
  4. Step 4: Simplify right side
    47,428.16x = 1,268,160,763.24
  5. Step 5: Solve for x
    x = 1,268,160,763.24/47,428.16
  6. Step 6: Final answer
    x = 26,738.56

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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.