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Finding the Fourth Proportional to 40,540.40, 60,810.60 and 10,957.40

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Solution

The fourth proportional to 40,540.40, 60,810.60 and 10,957.40 is: 16,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,540.40 : 60,810.60 = 10,957.40 : x
  2. Step 2: Convert to fraction form
    40,540.40/60,810.60 = 10,957.40/x
  3. Step 3: Cross multiply
    40,540.40x = 60,810.60 × 10,957.40
  4. Step 4: Simplify right side
    40,540.40x = 666,326,068.44
  5. Step 5: Solve for x
    x = 666,326,068.44/40,540.40
  6. Step 6: Final answer
    x = 16,436.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.