Home / 20,944.53-31,421.40-6,903.99

Finding the Fourth Proportional to 20,944.53, 31,421.40 and 6,903.99

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Solution

The fourth proportional to 20,944.53, 31,421.40 and 6,903.99 is: 10,357.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.53 : 31,421.40 = 6,903.99 : x
  2. Step 2: Convert to fraction form
    20,944.53/31,421.40 = 6,903.99/x
  3. Step 3: Cross multiply
    20,944.53x = 31,421.40 × 6,903.99
  4. Step 4: Simplify right side
    20,944.53x = 216,933,031.39
  5. Step 5: Solve for x
    x = 216,933,031.39/20,944.53
  6. Step 6: Final answer
    x = 10,357.50

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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.