Home / 20,362.79-30,525.38-14,125.74

Finding the Fourth Proportional to 20,362.79, 30,525.38 and 14,125.74

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Solution

The fourth proportional to 20,362.79, 30,525.38 and 14,125.74 is: 21,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.79 : 30,525.38 = 14,125.74 : x
  2. Step 2: Convert to fraction form
    20,362.79/30,525.38 = 14,125.74/x
  3. Step 3: Cross multiply
    20,362.79x = 30,525.38 × 14,125.74
  4. Step 4: Simplify right side
    20,362.79x = 431,193,616.60
  5. Step 5: Solve for x
    x = 431,193,616.60/20,362.79
  6. Step 6: Final answer
    x = 21,175.57

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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.