Home / 26,811.50-36,999.90-15,635.66

Finding the Fourth Proportional to 26,811.50, 36,999.90 and 15,635.66

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Solution

The fourth proportional to 26,811.50, 36,999.90 and 15,635.66 is: 21,577.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.50 : 36,999.90 = 15,635.66 : x
  2. Step 2: Convert to fraction form
    26,811.50/36,999.90 = 15,635.66/x
  3. Step 3: Cross multiply
    26,811.50x = 36,999.90 × 15,635.66
  4. Step 4: Simplify right side
    26,811.50x = 578,517,856.43
  5. Step 5: Solve for x
    x = 578,517,856.43/26,811.50
  6. Step 6: Final answer
    x = 21,577.23

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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.