Home / 28,240.11-42,359.76-6,893.10

Finding the Fourth Proportional to 28,240.11, 42,359.76 and 6,893.10

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Solution

The fourth proportional to 28,240.11, 42,359.76 and 6,893.10 is: 10,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.11 : 42,359.76 = 6,893.10 : x
  2. Step 2: Convert to fraction form
    28,240.11/42,359.76 = 6,893.10/x
  3. Step 3: Cross multiply
    28,240.11x = 42,359.76 × 6,893.10
  4. Step 4: Simplify right side
    28,240.11x = 291,990,061.66
  5. Step 5: Solve for x
    x = 291,990,061.66/28,240.11
  6. Step 6: Final answer
    x = 10,339.55

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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.