Home / 20,544.61-28,325.87-17,146.51

Finding the Fourth Proportional to 20,544.61, 28,325.87 and 17,146.51

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Solution

The fourth proportional to 20,544.61, 28,325.87 and 17,146.51 is: 23,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.61 : 28,325.87 = 17,146.51 : x
  2. Step 2: Convert to fraction form
    20,544.61/28,325.87 = 17,146.51/x
  3. Step 3: Cross multiply
    20,544.61x = 28,325.87 × 17,146.51
  4. Step 4: Simplify right side
    20,544.61x = 485,689,813.21
  5. Step 5: Solve for x
    x = 485,689,813.21/20,544.61
  6. Step 6: Final answer
    x = 23,640.74

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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.