Home / 20,157.52-30,244.40-9,056.76

Finding the Fourth Proportional to 20,157.52, 30,244.40 and 9,056.76

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Solution

The fourth proportional to 20,157.52, 30,244.40 and 9,056.76 is: 13,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.52 : 30,244.40 = 9,056.76 : x
  2. Step 2: Convert to fraction form
    20,157.52/30,244.40 = 9,056.76/x
  3. Step 3: Cross multiply
    20,157.52x = 30,244.40 × 9,056.76
  4. Step 4: Simplify right side
    20,157.52x = 273,916,272.14
  5. Step 5: Solve for x
    x = 273,916,272.14/20,157.52
  6. Step 6: Final answer
    x = 13,588.79

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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.