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Finding the Fourth Proportional to 17,200.78, 23,741.31 and 10,490.11

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Solution

The fourth proportional to 17,200.78, 23,741.31 and 10,490.11 is: 14,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,200.78 : 23,741.31 = 10,490.11 : x
  2. Step 2: Convert to fraction form
    17,200.78/23,741.31 = 10,490.11/x
  3. Step 3: Cross multiply
    17,200.78x = 23,741.31 × 10,490.11
  4. Step 4: Simplify right side
    17,200.78x = 249,048,953.44
  5. Step 5: Solve for x
    x = 249,048,953.44/17,200.78
  6. Step 6: Final answer
    x = 14,478.93

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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.