Home / 28,435.93-42,655.82-8,728.22

Finding the Fourth Proportional to 28,435.93, 42,655.82 and 8,728.22

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Solution

The fourth proportional to 28,435.93, 42,655.82 and 8,728.22 is: 13,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.93 : 42,655.82 = 8,728.22 : x
  2. Step 2: Convert to fraction form
    28,435.93/42,655.82 = 8,728.22/x
  3. Step 3: Cross multiply
    28,435.93x = 42,655.82 × 8,728.22
  4. Step 4: Simplify right side
    28,435.93x = 372,309,444.24
  5. Step 5: Solve for x
    x = 372,309,444.24/28,435.93
  6. Step 6: Final answer
    x = 13,092.92

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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.