Home / 37,778.92-52,136.66-21,860.28

Finding the Fourth Proportional to 37,778.92, 52,136.66 and 21,860.28

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Solution

The fourth proportional to 37,778.92, 52,136.66 and 21,860.28 is: 30,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.92 : 52,136.66 = 21,860.28 : x
  2. Step 2: Convert to fraction form
    37,778.92/52,136.66 = 21,860.28/x
  3. Step 3: Cross multiply
    37,778.92x = 52,136.66 × 21,860.28
  4. Step 4: Simplify right side
    37,778.92x = 1,139,721,985.86
  5. Step 5: Solve for x
    x = 1,139,721,985.86/37,778.92
  6. Step 6: Final answer
    x = 30,168.20

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1.5x scale

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.