Home / 20,125.14-30,156.93-13,526.88

Finding the Fourth Proportional to 20,125.14, 30,156.93 and 13,526.88

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Solution

The fourth proportional to 20,125.14, 30,156.93 and 13,526.88 is: 20,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.14 : 30,156.93 = 13,526.88 : x
  2. Step 2: Convert to fraction form
    20,125.14/30,156.93 = 13,526.88/x
  3. Step 3: Cross multiply
    20,125.14x = 30,156.93 × 13,526.88
  4. Step 4: Simplify right side
    20,125.14x = 407,929,173.28
  5. Step 5: Solve for x
    x = 407,929,173.28/20,125.14
  6. Step 6: Final answer
    x = 20,269.63

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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.