Home / 31,553.76-47,329.56-12,828.24

Finding the Fourth Proportional to 31,553.76, 47,329.56 and 12,828.24

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Solution

The fourth proportional to 31,553.76, 47,329.56 and 12,828.24 is: 19,241.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.76 : 47,329.56 = 12,828.24 : x
  2. Step 2: Convert to fraction form
    31,553.76/47,329.56 = 12,828.24/x
  3. Step 3: Cross multiply
    31,553.76x = 47,329.56 × 12,828.24
  4. Step 4: Simplify right side
    31,553.76x = 607,154,954.77
  5. Step 5: Solve for x
    x = 607,154,954.77/31,553.76
  6. Step 6: Final answer
    x = 19,241.92

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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.