Home / 36,987.47-51,041.68-20,854.64

Finding the Fourth Proportional to 36,987.47, 51,041.68 and 20,854.64

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Solution

The fourth proportional to 36,987.47, 51,041.68 and 20,854.64 is: 28,778.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.47 : 51,041.68 = 20,854.64 : x
  2. Step 2: Convert to fraction form
    36,987.47/51,041.68 = 20,854.64/x
  3. Step 3: Cross multiply
    36,987.47x = 51,041.68 × 20,854.64
  4. Step 4: Simplify right side
    36,987.47x = 1,064,456,054.17
  5. Step 5: Solve for x
    x = 1,064,456,054.17/36,987.47
  6. Step 6: Final answer
    x = 28,778.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.