Home / 20,688.62-31,050.95-10,834.83

Finding the Fourth Proportional to 20,688.62, 31,050.95 and 10,834.83

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Solution

The fourth proportional to 20,688.62, 31,050.95 and 10,834.83 is: 16,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688.62 : 31,050.95 = 10,834.83 : x
  2. Step 2: Convert to fraction form
    20,688.62/31,050.95 = 10,834.83/x
  3. Step 3: Cross multiply
    20,688.62x = 31,050.95 × 10,834.83
  4. Step 4: Simplify right side
    20,688.62x = 336,431,710.41
  5. Step 5: Solve for x
    x = 336,431,710.41/20,688.62
  6. Step 6: Final answer
    x = 16,261.68

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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.