Home / 28,215.18-38,935.56-16,282.32

Finding the Fourth Proportional to 28,215.18, 38,935.56 and 16,282.32

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Solution

The fourth proportional to 28,215.18, 38,935.56 and 16,282.32 is: 22,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.18 : 38,935.56 = 16,282.32 : x
  2. Step 2: Convert to fraction form
    28,215.18/38,935.56 = 16,282.32/x
  3. Step 3: Cross multiply
    28,215.18x = 38,935.56 × 16,282.32
  4. Step 4: Simplify right side
    28,215.18x = 633,961,247.30
  5. Step 5: Solve for x
    x = 633,961,247.30/28,215.18
  6. Step 6: Final answer
    x = 22,468.80

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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.