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Finding the Fourth Proportional to 37,657.66, 51,967.83 and 20,890.66

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Solution

The fourth proportional to 37,657.66, 51,967.83 and 20,890.66 is: 28,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,657.66 : 51,967.83 = 20,890.66 : x
  2. Step 2: Convert to fraction form
    37,657.66/51,967.83 = 20,890.66/x
  3. Step 3: Cross multiply
    37,657.66x = 51,967.83 × 20,890.66
  4. Step 4: Simplify right side
    37,657.66x = 1,085,642,267.47
  5. Step 5: Solve for x
    x = 1,085,642,267.47/37,657.66
  6. Step 6: Final answer
    x = 28,829.25

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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.