Home / 20,531.04-30,768.24-9,410.08

Finding the Fourth Proportional to 20,531.04, 30,768.24 and 9,410.08

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Solution

The fourth proportional to 20,531.04, 30,768.24 and 9,410.08 is: 14,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.04 : 30,768.24 = 9,410.08 : x
  2. Step 2: Convert to fraction form
    20,531.04/30,768.24 = 9,410.08/x
  3. Step 3: Cross multiply
    20,531.04x = 30,768.24 × 9,410.08
  4. Step 4: Simplify right side
    20,531.04x = 289,531,599.86
  5. Step 5: Solve for x
    x = 289,531,599.86/20,531.04
  6. Step 6: Final answer
    x = 14,102.14

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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.