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Finding the Fourth Proportional to 35,513.60, 49,007.10 and 20,395.60

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Solution

The fourth proportional to 35,513.60, 49,007.10 and 20,395.60 is: 28,144.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,513.60 : 49,007.10 = 20,395.60 : x
  2. Step 2: Convert to fraction form
    35,513.60/49,007.10 = 20,395.60/x
  3. Step 3: Cross multiply
    35,513.60x = 49,007.10 × 20,395.60
  4. Step 4: Simplify right side
    35,513.60x = 999,529,208.76
  5. Step 5: Solve for x
    x = 999,529,208.76/35,513.60
  6. Step 6: Final answer
    x = 28,144.97

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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.