Home / 20,697.93-28,563.27-11,266.50

Finding the Fourth Proportional to 20,697.93, 28,563.27 and 11,266.50

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Solution

The fourth proportional to 20,697.93, 28,563.27 and 11,266.50 is: 15,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.93 : 28,563.27 = 11,266.50 : x
  2. Step 2: Convert to fraction form
    20,697.93/28,563.27 = 11,266.50/x
  3. Step 3: Cross multiply
    20,697.93x = 28,563.27 × 11,266.50
  4. Step 4: Simplify right side
    20,697.93x = 321,808,081.46
  5. Step 5: Solve for x
    x = 321,808,081.46/20,697.93
  6. Step 6: Final answer
    x = 15,547.84

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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.