Home / 21,310.56-29,402.04-12,356.26

Finding the Fourth Proportional to 21,310.56, 29,402.04 and 12,356.26

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Solution

The fourth proportional to 21,310.56, 29,402.04 and 12,356.26 is: 17,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.56 : 29,402.04 = 12,356.26 : x
  2. Step 2: Convert to fraction form
    21,310.56/29,402.04 = 12,356.26/x
  3. Step 3: Cross multiply
    21,310.56x = 29,402.04 × 12,356.26
  4. Step 4: Simplify right side
    21,310.56x = 363,299,250.77
  5. Step 5: Solve for x
    x = 363,299,250.77/21,310.56
  6. Step 6: Final answer
    x = 17,047.85

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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.