Home / 20,453.94-28,225.80-11,501.82

Finding the Fourth Proportional to 20,453.94, 28,225.80 and 11,501.82

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Solution

The fourth proportional to 20,453.94, 28,225.80 and 11,501.82 is: 15,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.94 : 28,225.80 = 11,501.82 : x
  2. Step 2: Convert to fraction form
    20,453.94/28,225.80 = 11,501.82/x
  3. Step 3: Cross multiply
    20,453.94x = 28,225.80 × 11,501.82
  4. Step 4: Simplify right side
    20,453.94x = 324,648,070.96
  5. Step 5: Solve for x
    x = 324,648,070.96/20,453.94
  6. Step 6: Final answer
    x = 15,872.15

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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.