Home / 21,226.52-29,293.38-12,730.03

Finding the Fourth Proportional to 21,226.52, 29,293.38 and 12,730.03

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Solution

The fourth proportional to 21,226.52, 29,293.38 and 12,730.03 is: 17,567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226.52 : 29,293.38 = 12,730.03 : x
  2. Step 2: Convert to fraction form
    21,226.52/29,293.38 = 12,730.03/x
  3. Step 3: Cross multiply
    21,226.52x = 29,293.38 × 12,730.03
  4. Step 4: Simplify right side
    21,226.52x = 372,905,532.97
  5. Step 5: Solve for x
    x = 372,905,532.97/21,226.52
  6. Step 6: Final answer
    x = 17,567.91

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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.