Home / 31,491.07-47,235.23-11,769.79

Finding the Fourth Proportional to 31,491.07, 47,235.23 and 11,769.79

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Solution

The fourth proportional to 31,491.07, 47,235.23 and 11,769.79 is: 17,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.07 : 47,235.23 = 11,769.79 : x
  2. Step 2: Convert to fraction form
    31,491.07/47,235.23 = 11,769.79/x
  3. Step 3: Cross multiply
    31,491.07x = 47,235.23 × 11,769.79
  4. Step 4: Simplify right side
    31,491.07x = 555,948,737.70
  5. Step 5: Solve for x
    x = 555,948,737.70/31,491.07
  6. Step 6: Final answer
    x = 17,654.17

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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.