Home / 20,647.67-28,496.06-11,573.90

Finding the Fourth Proportional to 20,647.67, 28,496.06 and 11,573.90

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Solution

The fourth proportional to 20,647.67, 28,496.06 and 11,573.90 is: 15,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.67 : 28,496.06 = 11,573.90 : x
  2. Step 2: Convert to fraction form
    20,647.67/28,496.06 = 11,573.90/x
  3. Step 3: Cross multiply
    20,647.67x = 28,496.06 × 11,573.90
  4. Step 4: Simplify right side
    20,647.67x = 329,810,627.71
  5. Step 5: Solve for x
    x = 329,810,627.71/20,647.67
  6. Step 6: Final answer
    x = 15,973.26

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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.