Home / 21,284.63-29,372.78-12,337.32

Finding the Fourth Proportional to 21,284.63, 29,372.78 and 12,337.32

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Solution

The fourth proportional to 21,284.63, 29,372.78 and 12,337.32 is: 17,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.63 : 29,372.78 = 12,337.32 : x
  2. Step 2: Convert to fraction form
    21,284.63/29,372.78 = 12,337.32/x
  3. Step 3: Cross multiply
    21,284.63x = 29,372.78 × 12,337.32
  4. Step 4: Simplify right side
    21,284.63x = 362,381,177.60
  5. Step 5: Solve for x
    x = 362,381,177.60/21,284.63
  6. Step 6: Final answer
    x = 17,025.49

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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.