Home / 20,477.59-28,248.75-11,974.14

Finding the Fourth Proportional to 20,477.59, 28,248.75 and 11,974.14

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Solution

The fourth proportional to 20,477.59, 28,248.75 and 11,974.14 is: 16,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.59 : 28,248.75 = 11,974.14 : x
  2. Step 2: Convert to fraction form
    20,477.59/28,248.75 = 11,974.14/x
  3. Step 3: Cross multiply
    20,477.59x = 28,248.75 × 11,974.14
  4. Step 4: Simplify right side
    20,477.59x = 338,254,487.33
  5. Step 5: Solve for x
    x = 338,254,487.33/20,477.59
  6. Step 6: Final answer
    x = 16,518.28

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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.