Home / 21,144.48-31,717.08-5,561.52

Finding the Fourth Proportional to 21,144.48, 31,717.08 and 5,561.52

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Solution

The fourth proportional to 21,144.48, 31,717.08 and 5,561.52 is: 8,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.48 : 31,717.08 = 5,561.52 : x
  2. Step 2: Convert to fraction form
    21,144.48/31,717.08 = 5,561.52/x
  3. Step 3: Cross multiply
    21,144.48x = 31,717.08 × 5,561.52
  4. Step 4: Simplify right side
    21,144.48x = 176,395,174.76
  5. Step 5: Solve for x
    x = 176,395,174.76/21,144.48
  6. Step 6: Final answer
    x = 8,342.37

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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.