Home / 21,156.48-31,735.12-5,573.52

Finding the Fourth Proportional to 21,156.48, 31,735.12 and 5,573.52

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Solution

The fourth proportional to 21,156.48, 31,735.12 and 5,573.52 is: 8,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156.48 : 31,735.12 = 5,573.52 : x
  2. Step 2: Convert to fraction form
    21,156.48/31,735.12 = 5,573.52/x
  3. Step 3: Cross multiply
    21,156.48x = 31,735.12 × 5,573.52
  4. Step 4: Simplify right side
    21,156.48x = 176,876,326.02
  5. Step 5: Solve for x
    x = 176,876,326.02/21,156.48
  6. Step 6: Final answer
    x = 8,360.39

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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.