Home / 20,089.61-27,722.63-11,137.02

Finding the Fourth Proportional to 20,089.61, 27,722.63 and 11,137.02

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Solution

The fourth proportional to 20,089.61, 27,722.63 and 11,137.02 is: 15,368.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.61 : 27,722.63 = 11,137.02 : x
  2. Step 2: Convert to fraction form
    20,089.61/27,722.63 = 11,137.02/x
  3. Step 3: Cross multiply
    20,089.61x = 27,722.63 × 11,137.02
  4. Step 4: Simplify right side
    20,089.61x = 308,747,429.08
  5. Step 5: Solve for x
    x = 308,747,429.08/20,089.61
  6. Step 6: Final answer
    x = 15,368.52

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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.