Home / 20,671.18-31,007.58-10,803.76

Finding the Fourth Proportional to 20,671.18, 31,007.58 and 10,803.76

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Solution

The fourth proportional to 20,671.18, 31,007.58 and 10,803.76 is: 16,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.18 : 31,007.58 = 10,803.76 : x
  2. Step 2: Convert to fraction form
    20,671.18/31,007.58 = 10,803.76/x
  3. Step 3: Cross multiply
    20,671.18x = 31,007.58 × 10,803.76
  4. Step 4: Simplify right side
    20,671.18x = 334,998,452.50
  5. Step 5: Solve for x
    x = 334,998,452.50/20,671.18
  6. Step 6: Final answer
    x = 16,206.06

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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.