Home / 20,184.10-30,276.15-10,342.60

Finding the Fourth Proportional to 20,184.10, 30,276.15 and 10,342.60

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Solution

The fourth proportional to 20,184.10, 30,276.15 and 10,342.60 is: 15,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.10 : 30,276.15 = 10,342.60 : x
  2. Step 2: Convert to fraction form
    20,184.10/30,276.15 = 10,342.60/x
  3. Step 3: Cross multiply
    20,184.10x = 30,276.15 × 10,342.60
  4. Step 4: Simplify right side
    20,184.10x = 313,134,108.99
  5. Step 5: Solve for x
    x = 313,134,108.99/20,184.10
  6. Step 6: Final answer
    x = 15,513.90

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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.