Home / 20,466.15-28,244.91-11,513.11

Finding the Fourth Proportional to 20,466.15, 28,244.91 and 11,513.11

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Solution

The fourth proportional to 20,466.15, 28,244.91 and 11,513.11 is: 15,889.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.15 : 28,244.91 = 11,513.11 : x
  2. Step 2: Convert to fraction form
    20,466.15/28,244.91 = 11,513.11/x
  3. Step 3: Cross multiply
    20,466.15x = 28,244.91 × 11,513.11
  4. Step 4: Simplify right side
    20,466.15x = 325,186,755.77
  5. Step 5: Solve for x
    x = 325,186,755.77/20,466.15
  6. Step 6: Final answer
    x = 15,889.00

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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.