Home / 28,468.96-39,234-20,497.36

Finding the Fourth Proportional to 28,468.96, 39,234 and 20,497.36

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Solution

The fourth proportional to 28,468.96, 39,234 and 20,497.36 is: 28,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.96 : 39,234 = 20,497.36 : x
  2. Step 2: Convert to fraction form
    28,468.96/39,234 = 20,497.36/x
  3. Step 3: Cross multiply
    28,468.96x = 39,234 × 20,497.36
  4. Step 4: Simplify right side
    28,468.96x = 804,193,422.24
  5. Step 5: Solve for x
    x = 804,193,422.24/28,468.96
  6. Step 6: Final answer
    x = 28,248.08

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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.