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Finding the Fourth Proportional to 15,980.26, 23,971.02 and 4,293.40

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Solution

The fourth proportional to 15,980.26, 23,971.02 and 4,293.40 is: 6,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.26 : 23,971.02 = 4,293.40 : x
  2. Step 2: Convert to fraction form
    15,980.26/23,971.02 = 4,293.40/x
  3. Step 3: Cross multiply
    15,980.26x = 23,971.02 × 4,293.40
  4. Step 4: Simplify right side
    15,980.26x = 102,917,177.27
  5. Step 5: Solve for x
    x = 102,917,177.27/15,980.26
  6. Step 6: Final answer
    x = 6,440.27

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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.