Home / 31,552.85-47,315.46-11,817.56

Finding the Fourth Proportional to 31,552.85, 47,315.46 and 11,817.56

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Solution

The fourth proportional to 31,552.85, 47,315.46 and 11,817.56 is: 17,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,552.85 : 47,315.46 = 11,817.56 : x
  2. Step 2: Convert to fraction form
    31,552.85/47,315.46 = 11,817.56/x
  3. Step 3: Cross multiply
    31,552.85x = 47,315.46 × 11,817.56
  4. Step 4: Simplify right side
    31,552.85x = 559,153,287.48
  5. Step 5: Solve for x
    x = 559,153,287.48/31,552.85
  6. Step 6: Final answer
    x = 17,721.17

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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.