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Finding the Fourth Proportional to 17,930.09, 24,741.11 and 9,970.79

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Solution

The fourth proportional to 17,930.09, 24,741.11 and 9,970.79 is: 13,758.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.09 : 24,741.11 = 9,970.79 : x
  2. Step 2: Convert to fraction form
    17,930.09/24,741.11 = 9,970.79/x
  3. Step 3: Cross multiply
    17,930.09x = 24,741.11 × 9,970.79
  4. Step 4: Simplify right side
    17,930.09x = 246,688,313.40
  5. Step 5: Solve for x
    x = 246,688,313.40/17,930.09
  6. Step 6: Final answer
    x = 13,758.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.