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Finding the Fourth Proportional to 36,070.40, 49,769.60 and 21,158.40

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Solution

The fourth proportional to 36,070.40, 49,769.60 and 21,158.40 is: 29,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,070.40 : 49,769.60 = 21,158.40 : x
  2. Step 2: Convert to fraction form
    36,070.40/49,769.60 = 21,158.40/x
  3. Step 3: Cross multiply
    36,070.40x = 49,769.60 × 21,158.40
  4. Step 4: Simplify right side
    36,070.40x = 1,053,045,104.64
  5. Step 5: Solve for x
    x = 1,053,045,104.64/36,070.40
  6. Step 6: Final answer
    x = 29,194.16

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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.