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Finding the Fourth Proportional to 36,959, 55,445.80 and 18,901.68

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Solution

The fourth proportional to 36,959, 55,445.80 and 18,901.68 is: 28,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,959 : 55,445.80 = 18,901.68 : x
  2. Step 2: Convert to fraction form
    36,959/55,445.80 = 18,901.68/x
  3. Step 3: Cross multiply
    36,959x = 55,445.80 × 18,901.68
  4. Step 4: Simplify right side
    36,959x = 1,048,018,768.94
  5. Step 5: Solve for x
    x = 1,048,018,768.94/36,959
  6. Step 6: Final answer
    x = 28,356.25

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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.