Home / 35,823.69-53,661.66-20,987.61

Finding the Fourth Proportional to 35,823.69, 53,661.66 and 20,987.61

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Solution

The fourth proportional to 35,823.69, 53,661.66 and 20,987.61 is: 31,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,823.69 : 53,661.66 = 20,987.61 : x
  2. Step 2: Convert to fraction form
    35,823.69/53,661.66 = 20,987.61/x
  3. Step 3: Cross multiply
    35,823.69x = 53,661.66 × 20,987.61
  4. Step 4: Simplify right side
    35,823.69x = 1,126,229,992.03
  5. Step 5: Solve for x
    x = 1,126,229,992.03/35,823.69
  6. Step 6: Final answer
    x = 31,438.13

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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.