Home / 20,552.88-30,829.40-4,970.52

Finding the Fourth Proportional to 20,552.88, 30,829.40 and 4,970.52

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Solution

The fourth proportional to 20,552.88, 30,829.40 and 4,970.52 is: 7,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.88 : 30,829.40 = 4,970.52 : x
  2. Step 2: Convert to fraction form
    20,552.88/30,829.40 = 4,970.52/x
  3. Step 3: Cross multiply
    20,552.88x = 30,829.40 × 4,970.52
  4. Step 4: Simplify right side
    20,552.88x = 153,238,149.29
  5. Step 5: Solve for x
    x = 153,238,149.29/20,552.88
  6. Step 6: Final answer
    x = 7,455.80

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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.