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Finding the Fourth Proportional to 35,560.40, 49,063.56 and 20,656.40

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Solution

The fourth proportional to 35,560.40, 49,063.56 and 20,656.40 is: 28,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,560.40 : 49,063.56 = 20,656.40 : x
  2. Step 2: Convert to fraction form
    35,560.40/49,063.56 = 20,656.40/x
  3. Step 3: Cross multiply
    35,560.40x = 49,063.56 × 20,656.40
  4. Step 4: Simplify right side
    35,560.40x = 1,013,476,520.78
  5. Step 5: Solve for x
    x = 1,013,476,520.78/35,560.40
  6. Step 6: Final answer
    x = 28,500.14

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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.