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Finding the Fourth Proportional to 31,445.56, 43,394.56 and 17,298.42

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Solution

The fourth proportional to 31,445.56, 43,394.56 and 17,298.42 is: 23,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.56 : 43,394.56 = 17,298.42 : x
  2. Step 2: Convert to fraction form
    31,445.56/43,394.56 = 17,298.42/x
  3. Step 3: Cross multiply
    31,445.56x = 43,394.56 × 17,298.42
  4. Step 4: Simplify right side
    31,445.56x = 750,657,324.60
  5. Step 5: Solve for x
    x = 750,657,324.60/31,445.56
  6. Step 6: Final answer
    x = 23,871.65

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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.