Home / 21,285.25-29,373.64-12,337.94

Finding the Fourth Proportional to 21,285.25, 29,373.64 and 12,337.94

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Solution

The fourth proportional to 21,285.25, 29,373.64 and 12,337.94 is: 17,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285.25 : 29,373.64 = 12,337.94 : x
  2. Step 2: Convert to fraction form
    21,285.25/29,373.64 = 12,337.94/x
  3. Step 3: Cross multiply
    21,285.25x = 29,373.64 × 12,337.94
  4. Step 4: Simplify right side
    21,285.25x = 362,410,250.49
  5. Step 5: Solve for x
    x = 362,410,250.49/21,285.25
  6. Step 6: Final answer
    x = 17,026.36

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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.