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Finding the Fourth Proportional to 39,613, 59,345.34 and 19,868.44

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Solution

The fourth proportional to 39,613, 59,345.34 and 19,868.44 is: 29,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613 : 59,345.34 = 19,868.44 : x
  2. Step 2: Convert to fraction form
    39,613/59,345.34 = 19,868.44/x
  3. Step 3: Cross multiply
    39,613x = 59,345.34 × 19,868.44
  4. Step 4: Simplify right side
    39,613x = 1,179,099,327.07
  5. Step 5: Solve for x
    x = 1,179,099,327.07/39,613
  6. Step 6: Final answer
    x = 29,765.46

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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.