Home / 21,284.87-29,373.12-12,337.57

Finding the Fourth Proportional to 21,284.87, 29,373.12 and 12,337.57

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Solution

The fourth proportional to 21,284.87, 29,373.12 and 12,337.57 is: 17,025.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.87 : 29,373.12 = 12,337.57 : x
  2. Step 2: Convert to fraction form
    21,284.87/29,373.12 = 12,337.57/x
  3. Step 3: Cross multiply
    21,284.87x = 29,373.12 × 12,337.57
  4. Step 4: Simplify right side
    21,284.87x = 362,392,850.69
  5. Step 5: Solve for x
    x = 362,392,850.69/21,284.87
  6. Step 6: Final answer
    x = 17,025.84

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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.