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Finding the Fourth Proportional to 37,880.25, 52,275.05 and 20,885.10

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Solution

The fourth proportional to 37,880.25, 52,275.05 and 20,885.10 is: 28,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,880.25 : 52,275.05 = 20,885.10 : x
  2. Step 2: Convert to fraction form
    37,880.25/52,275.05 = 20,885.10/x
  3. Step 3: Cross multiply
    37,880.25x = 52,275.05 × 20,885.10
  4. Step 4: Simplify right side
    37,880.25x = 1,091,769,542.33
  5. Step 5: Solve for x
    x = 1,091,769,542.33/37,880.25
  6. Step 6: Final answer
    x = 28,821.60

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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.