Home / 22,721.28-31,360.54-14,749.68

Finding the Fourth Proportional to 22,721.28, 31,360.54 and 14,749.68

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Solution

The fourth proportional to 22,721.28, 31,360.54 and 14,749.68 is: 20,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.28 : 31,360.54 = 14,749.68 : x
  2. Step 2: Convert to fraction form
    22,721.28/31,360.54 = 14,749.68/x
  3. Step 3: Cross multiply
    22,721.28x = 31,360.54 × 14,749.68
  4. Step 4: Simplify right side
    22,721.28x = 462,557,929.63
  5. Step 5: Solve for x
    x = 462,557,929.63/22,721.28
  6. Step 6: Final answer
    x = 20,357.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.