Home / 20,717.42-31,059.26-9,631.10

Finding the Fourth Proportional to 20,717.42, 31,059.26 and 9,631.10

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Solution

The fourth proportional to 20,717.42, 31,059.26 and 9,631.10 is: 14,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.42 : 31,059.26 = 9,631.10 : x
  2. Step 2: Convert to fraction form
    20,717.42/31,059.26 = 9,631.10/x
  3. Step 3: Cross multiply
    20,717.42x = 31,059.26 × 9,631.10
  4. Step 4: Simplify right side
    20,717.42x = 299,134,838.99
  5. Step 5: Solve for x
    x = 299,134,838.99/20,717.42
  6. Step 6: Final answer
    x = 14,438.81

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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.