Home / 37,981.76-52,414.52-20,985.95

Finding the Fourth Proportional to 37,981.76, 52,414.52 and 20,985.95

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Solution

The fourth proportional to 37,981.76, 52,414.52 and 20,985.95 is: 28,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,981.76 : 52,414.52 = 20,985.95 : x
  2. Step 2: Convert to fraction form
    37,981.76/52,414.52 = 20,985.95/x
  3. Step 3: Cross multiply
    37,981.76x = 52,414.52 × 20,985.95
  4. Step 4: Simplify right side
    37,981.76x = 1,099,968,391.06
  5. Step 5: Solve for x
    x = 1,099,968,391.06/37,981.76
  6. Step 6: Final answer
    x = 28,960.44

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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.