Home / 20,598.53-28,425.21-11,166.89

Finding the Fourth Proportional to 20,598.53, 28,425.21 and 11,166.89

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Solution

The fourth proportional to 20,598.53, 28,425.21 and 11,166.89 is: 15,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.53 : 28,425.21 = 11,166.89 : x
  2. Step 2: Convert to fraction form
    20,598.53/28,425.21 = 11,166.89/x
  3. Step 3: Cross multiply
    20,598.53x = 28,425.21 × 11,166.89
  4. Step 4: Simplify right side
    20,598.53x = 317,421,193.30
  5. Step 5: Solve for x
    x = 317,421,193.30/20,598.53
  6. Step 6: Final answer
    x = 15,409.90

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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.