Home / 37,778.16-52,135.62-21,859.53

Finding the Fourth Proportional to 37,778.16, 52,135.62 and 21,859.53

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Solution

The fourth proportional to 37,778.16, 52,135.62 and 21,859.53 is: 30,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.16 : 52,135.62 = 21,859.53 : x
  2. Step 2: Convert to fraction form
    37,778.16/52,135.62 = 21,859.53/x
  3. Step 3: Cross multiply
    37,778.16x = 52,135.62 × 21,859.53
  4. Step 4: Simplify right side
    37,778.16x = 1,139,660,149.46
  5. Step 5: Solve for x
    x = 1,139,660,149.46/37,778.16
  6. Step 6: Final answer
    x = 30,167.17

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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.