Home / 31,532.48-47,273.10-12,821.28

Finding the Fourth Proportional to 31,532.48, 47,273.10 and 12,821.28

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Solution

The fourth proportional to 31,532.48, 47,273.10 and 12,821.28 is: 19,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,532.48 : 47,273.10 = 12,821.28 : x
  2. Step 2: Convert to fraction form
    31,532.48/47,273.10 = 12,821.28/x
  3. Step 3: Cross multiply
    31,532.48x = 47,273.10 × 12,821.28
  4. Step 4: Simplify right side
    31,532.48x = 606,101,651.57
  5. Step 5: Solve for x
    x = 606,101,651.57/31,532.48
  6. Step 6: Final answer
    x = 19,221.50

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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.