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Finding the Fourth Proportional to 35,657.70, 49,208.31 and 21,332.28

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Solution

The fourth proportional to 35,657.70, 49,208.31 and 21,332.28 is: 29,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,657.70 : 49,208.31 = 21,332.28 : x
  2. Step 2: Convert to fraction form
    35,657.70/49,208.31 = 21,332.28/x
  3. Step 3: Cross multiply
    35,657.70x = 49,208.31 × 21,332.28
  4. Step 4: Simplify right side
    35,657.70x = 1,049,725,447.25
  5. Step 5: Solve for x
    x = 1,049,725,447.25/35,657.70
  6. Step 6: Final answer
    x = 29,438.96

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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.