Home / 39,768.86-59,663.42-11,689.91

Finding the Fourth Proportional to 39,768.86, 59,663.42 and 11,689.91

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Solution

The fourth proportional to 39,768.86, 59,663.42 and 11,689.91 is: 17,537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.86 : 59,663.42 = 11,689.91 : x
  2. Step 2: Convert to fraction form
    39,768.86/59,663.42 = 11,689.91/x
  3. Step 3: Cross multiply
    39,768.86x = 59,663.42 × 11,689.91
  4. Step 4: Simplify right side
    39,768.86x = 697,459,653.33
  5. Step 5: Solve for x
    x = 697,459,653.33/39,768.86
  6. Step 6: Final answer
    x = 17,537.84

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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.