Home / 20,900.16-28,844.74-11,948.48

Finding the Fourth Proportional to 20,900.16, 28,844.74 and 11,948.48

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Solution

The fourth proportional to 20,900.16, 28,844.74 and 11,948.48 is: 16,490.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900.16 : 28,844.74 = 11,948.48 : x
  2. Step 2: Convert to fraction form
    20,900.16/28,844.74 = 11,948.48/x
  3. Step 3: Cross multiply
    20,900.16x = 28,844.74 × 11,948.48
  4. Step 4: Simplify right side
    20,900.16x = 344,650,799.00
  5. Step 5: Solve for x
    x = 344,650,799.00/20,900.16
  6. Step 6: Final answer
    x = 16,490.34

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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.