Home / 20,410.55-30,587.31-11,030.35

Finding the Fourth Proportional to 20,410.55, 30,587.31 and 11,030.35

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Solution

The fourth proportional to 20,410.55, 30,587.31 and 11,030.35 is: 16,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.55 : 30,587.31 = 11,030.35 : x
  2. Step 2: Convert to fraction form
    20,410.55/30,587.31 = 11,030.35/x
  3. Step 3: Cross multiply
    20,410.55x = 30,587.31 × 11,030.35
  4. Step 4: Simplify right side
    20,410.55x = 337,388,581.92
  5. Step 5: Solve for x
    x = 337,388,581.92/20,410.55
  6. Step 6: Final answer
    x = 16,530.11

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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.