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Finding the Fourth Proportional to 37,647.95, 51,954.20 and 20,880.95

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Solution

The fourth proportional to 37,647.95, 51,954.20 and 20,880.95 is: 28,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,647.95 : 51,954.20 = 20,880.95 : x
  2. Step 2: Convert to fraction form
    37,647.95/51,954.20 = 20,880.95/x
  3. Step 3: Cross multiply
    37,647.95x = 51,954.20 × 20,880.95
  4. Step 4: Simplify right side
    37,647.95x = 1,084,852,688.31
  5. Step 5: Solve for x
    x = 1,084,852,688.31/37,647.95
  6. Step 6: Final answer
    x = 28,815.72

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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.