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Finding the Fourth Proportional to 36,071.40, 49,770.98 and 21,159.40

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Solution

The fourth proportional to 36,071.40, 49,770.98 and 21,159.40 is: 29,195.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,071.40 : 49,770.98 = 21,159.40 : x
  2. Step 2: Convert to fraction form
    36,071.40/49,770.98 = 21,159.40/x
  3. Step 3: Cross multiply
    36,071.40x = 49,770.98 × 21,159.40
  4. Step 4: Simplify right side
    36,071.40x = 1,053,124,074.21
  5. Step 5: Solve for x
    x = 1,053,124,074.21/36,071.40
  6. Step 6: Final answer
    x = 29,195.54

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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.