Home / 20,537.03-28,341.15-11,105.59

Finding the Fourth Proportional to 20,537.03, 28,341.15 and 11,105.59

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Solution

The fourth proportional to 20,537.03, 28,341.15 and 11,105.59 is: 15,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.03 : 28,341.15 = 11,105.59 : x
  2. Step 2: Convert to fraction form
    20,537.03/28,341.15 = 11,105.59/x
  3. Step 3: Cross multiply
    20,537.03x = 28,341.15 × 11,105.59
  4. Step 4: Simplify right side
    20,537.03x = 314,745,192.03
  5. Step 5: Solve for x
    x = 314,745,192.03/20,537.03
  6. Step 6: Final answer
    x = 15,325.74

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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.