Home / 31,795.53-47,684.13-12,820.17

Finding the Fourth Proportional to 31,795.53, 47,684.13 and 12,820.17

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Solution

The fourth proportional to 31,795.53, 47,684.13 and 12,820.17 is: 19,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,795.53 : 47,684.13 = 12,820.17 : x
  2. Step 2: Convert to fraction form
    31,795.53/47,684.13 = 12,820.17/x
  3. Step 3: Cross multiply
    31,795.53x = 47,684.13 × 12,820.17
  4. Step 4: Simplify right side
    31,795.53x = 611,318,652.90
  5. Step 5: Solve for x
    x = 611,318,652.90/31,795.53
  6. Step 6: Final answer
    x = 19,226.56

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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.