Home / 31,800.54-47,644.68-19,295.18

Finding the Fourth Proportional to 31,800.54, 47,644.68 and 19,295.18

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Solution

The fourth proportional to 31,800.54, 47,644.68 and 19,295.18 is: 28,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,800.54 : 47,644.68 = 19,295.18 : x
  2. Step 2: Convert to fraction form
    31,800.54/47,644.68 = 19,295.18/x
  3. Step 3: Cross multiply
    31,800.54x = 47,644.68 × 19,295.18
  4. Step 4: Simplify right side
    31,800.54x = 919,312,438.42
  5. Step 5: Solve for x
    x = 919,312,438.42/31,800.54
  6. Step 6: Final answer
    x = 28,908.71

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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.