Home / 20,608.03-28,443.34-11,655.91

Finding the Fourth Proportional to 20,608.03, 28,443.34 and 11,655.91

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Solution

The fourth proportional to 20,608.03, 28,443.34 and 11,655.91 is: 16,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.03 : 28,443.34 = 11,655.91 : x
  2. Step 2: Convert to fraction form
    20,608.03/28,443.34 = 11,655.91/x
  3. Step 3: Cross multiply
    20,608.03x = 28,443.34 × 11,655.91
  4. Step 4: Simplify right side
    20,608.03x = 331,533,061.26
  5. Step 5: Solve for x
    x = 331,533,061.26/20,608.03
  6. Step 6: Final answer
    x = 16,087.57

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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.