Home / 29,455.44-40,663.20-19,390.40

Finding the Fourth Proportional to 29,455.44, 40,663.20 and 19,390.40

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Solution

The fourth proportional to 29,455.44, 40,663.20 and 19,390.40 is: 26,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.44 : 40,663.20 = 19,390.40 : x
  2. Step 2: Convert to fraction form
    29,455.44/40,663.20 = 19,390.40/x
  3. Step 3: Cross multiply
    29,455.44x = 40,663.20 × 19,390.40
  4. Step 4: Simplify right side
    29,455.44x = 788,475,713.28
  5. Step 5: Solve for x
    x = 788,475,713.28/29,455.44
  6. Step 6: Final answer
    x = 26,768.42

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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.