Home / 20,659.12-30,913.34-19,090.96

Finding the Fourth Proportional to 20,659.12, 30,913.34 and 19,090.96

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Solution

The fourth proportional to 20,659.12, 30,913.34 and 19,090.96 is: 28,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.12 : 30,913.34 = 19,090.96 : x
  2. Step 2: Convert to fraction form
    20,659.12/30,913.34 = 19,090.96/x
  3. Step 3: Cross multiply
    20,659.12x = 30,913.34 × 19,090.96
  4. Step 4: Simplify right side
    20,659.12x = 590,165,337.41
  5. Step 5: Solve for x
    x = 590,165,337.41/20,659.12
  6. Step 6: Final answer
    x = 28,566.82

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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.