Home / 20,507.48-30,728.84-14,935.17

Finding the Fourth Proportional to 20,507.48, 30,728.84 and 14,935.17

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Solution

The fourth proportional to 20,507.48, 30,728.84 and 14,935.17 is: 22,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.48 : 30,728.84 = 14,935.17 : x
  2. Step 2: Convert to fraction form
    20,507.48/30,728.84 = 14,935.17/x
  3. Step 3: Cross multiply
    20,507.48x = 30,728.84 × 14,935.17
  4. Step 4: Simplify right side
    20,507.48x = 458,940,374.63
  5. Step 5: Solve for x
    x = 458,940,374.63/20,507.48
  6. Step 6: Final answer
    x = 22,379.18

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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.