Home / 20,603.52-28,411.92-17,629.20

Finding the Fourth Proportional to 20,603.52, 28,411.92 and 17,629.20

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Solution

The fourth proportional to 20,603.52, 28,411.92 and 17,629.20 is: 24,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.52 : 28,411.92 = 17,629.20 : x
  2. Step 2: Convert to fraction form
    20,603.52/28,411.92 = 17,629.20/x
  3. Step 3: Cross multiply
    20,603.52x = 28,411.92 × 17,629.20
  4. Step 4: Simplify right side
    20,603.52x = 500,879,420.06
  5. Step 5: Solve for x
    x = 500,879,420.06/20,603.52
  6. Step 6: Final answer
    x = 24,310.38

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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.