Home / 20,802.48-31,203.43-19,472.73

Finding the Fourth Proportional to 20,802.48, 31,203.43 and 19,472.73

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Solution

The fourth proportional to 20,802.48, 31,203.43 and 19,472.73 is: 29,208.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.48 : 31,203.43 = 19,472.73 : x
  2. Step 2: Convert to fraction form
    20,802.48/31,203.43 = 19,472.73/x
  3. Step 3: Cross multiply
    20,802.48x = 31,203.43 × 19,472.73
  4. Step 4: Simplify right side
    20,802.48x = 607,615,811.45
  5. Step 5: Solve for x
    x = 607,615,811.45/20,802.48
  6. Step 6: Final answer
    x = 29,208.82

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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.