Home / 20,057.40-30,113.70-10,203.34

Finding the Fourth Proportional to 20,057.40, 30,113.70 and 10,203.34

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Solution

The fourth proportional to 20,057.40, 30,113.70 and 10,203.34 is: 15,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.40 : 30,113.70 = 10,203.34 : x
  2. Step 2: Convert to fraction form
    20,057.40/30,113.70 = 10,203.34/x
  3. Step 3: Cross multiply
    20,057.40x = 30,113.70 × 10,203.34
  4. Step 4: Simplify right side
    20,057.40x = 307,260,319.76
  5. Step 5: Solve for x
    x = 307,260,319.76/20,057.40
  6. Step 6: Final answer
    x = 15,319.05

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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.