Home / 21,272.75-31,853.39-14,998.81

Finding the Fourth Proportional to 21,272.75, 31,853.39 and 14,998.81

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Solution

The fourth proportional to 21,272.75, 31,853.39 and 14,998.81 is: 22,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.75 : 31,853.39 = 14,998.81 : x
  2. Step 2: Convert to fraction form
    21,272.75/31,853.39 = 14,998.81/x
  3. Step 3: Cross multiply
    21,272.75x = 31,853.39 × 14,998.81
  4. Step 4: Simplify right side
    21,272.75x = 477,762,710.20
  5. Step 5: Solve for x
    x = 477,762,710.20/21,272.75
  6. Step 6: Final answer
    x = 22,458.91

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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.