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Finding the Fourth Proportional to 26,965, 37,211.82 and 15,641.20

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Solution

The fourth proportional to 26,965, 37,211.82 and 15,641.20 is: 21,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,965 : 37,211.82 = 15,641.20 : x
  2. Step 2: Convert to fraction form
    26,965/37,211.82 = 15,641.20/x
  3. Step 3: Cross multiply
    26,965x = 37,211.82 × 15,641.20
  4. Step 4: Simplify right side
    26,965x = 582,037,518.98
  5. Step 5: Solve for x
    x = 582,037,518.98/26,965
  6. Step 6: Final answer
    x = 21,584.93

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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.