Home / 40,540.10-60,810.15-12,838.10

Finding the Fourth Proportional to 40,540.10, 60,810.15 and 12,838.10

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Solution

The fourth proportional to 40,540.10, 60,810.15 and 12,838.10 is: 19,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,540.10 : 60,810.15 = 12,838.10 : x
  2. Step 2: Convert to fraction form
    40,540.10/60,810.15 = 12,838.10/x
  3. Step 3: Cross multiply
    40,540.10x = 60,810.15 × 12,838.10
  4. Step 4: Simplify right side
    40,540.10x = 780,686,786.72
  5. Step 5: Solve for x
    x = 780,686,786.72/40,540.10
  6. Step 6: Final answer
    x = 19,257.15

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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.