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Finding the Fourth Proportional to 30,641.57, 45,939.00 and 15,841.05

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Solution

The fourth proportional to 30,641.57, 45,939.00 and 15,841.05 is: 23,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.57 : 45,939.00 = 15,841.05 : x
  2. Step 2: Convert to fraction form
    30,641.57/45,939.00 = 15,841.05/x
  3. Step 3: Cross multiply
    30,641.57x = 45,939.00 × 15,841.05
  4. Step 4: Simplify right side
    30,641.57x = 727,722,052.38
  5. Step 5: Solve for x
    x = 727,722,052.38/30,641.57
  6. Step 6: Final answer
    x = 23,749.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.