Home / 20,597.04-28,423.92-11,165.64

Finding the Fourth Proportional to 20,597.04, 28,423.92 and 11,165.64

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Solution

The fourth proportional to 20,597.04, 28,423.92 and 11,165.64 is: 15,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.04 : 28,423.92 = 11,165.64 : x
  2. Step 2: Convert to fraction form
    20,597.04/28,423.92 = 11,165.64/x
  3. Step 3: Cross multiply
    20,597.04x = 28,423.92 × 11,165.64
  4. Step 4: Simplify right side
    20,597.04x = 317,371,258.11
  5. Step 5: Solve for x
    x = 317,371,258.11/20,597.04
  6. Step 6: Final answer
    x = 15,408.59

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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.