Home / 39,691.86-59,534.80-18,636.51

Finding the Fourth Proportional to 39,691.86, 59,534.80 and 18,636.51

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Solution

The fourth proportional to 39,691.86, 59,534.80 and 18,636.51 is: 27,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,691.86 : 59,534.80 = 18,636.51 : x
  2. Step 2: Convert to fraction form
    39,691.86/59,534.80 = 18,636.51/x
  3. Step 3: Cross multiply
    39,691.86x = 59,534.80 × 18,636.51
  4. Step 4: Simplify right side
    39,691.86x = 1,109,521,072.21
  5. Step 5: Solve for x
    x = 1,109,521,072.21/39,691.86
  6. Step 6: Final answer
    x = 27,953.37

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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.