Home / 37,781.73-52,137.95-21,865.86

Finding the Fourth Proportional to 37,781.73, 52,137.95 and 21,865.86

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Solution

The fourth proportional to 37,781.73, 52,137.95 and 21,865.86 is: 30,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,781.73 : 52,137.95 = 21,865.86 : x
  2. Step 2: Convert to fraction form
    37,781.73/52,137.95 = 21,865.86/x
  3. Step 3: Cross multiply
    37,781.73x = 52,137.95 × 21,865.86
  4. Step 4: Simplify right side
    37,781.73x = 1,140,041,006.06
  5. Step 5: Solve for x
    x = 1,140,041,006.06/37,781.73
  6. Step 6: Final answer
    x = 30,174.40

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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.