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Finding the Fourth Proportional to 39,748, 59,650.08 and 18,973.12

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Solution

The fourth proportional to 39,748, 59,650.08 and 18,973.12 is: 28,473.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,748 : 59,650.08 = 18,973.12 : x
  2. Step 2: Convert to fraction form
    39,748/59,650.08 = 18,973.12/x
  3. Step 3: Cross multiply
    39,748x = 59,650.08 × 18,973.12
  4. Step 4: Simplify right side
    39,748x = 1,131,748,125.85
  5. Step 5: Solve for x
    x = 1,131,748,125.85/39,748
  6. Step 6: Final answer
    x = 28,473.08

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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.