Home / 26,679.66-36,820.35-15,499.50

Finding the Fourth Proportional to 26,679.66, 36,820.35 and 15,499.50

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Solution

The fourth proportional to 26,679.66, 36,820.35 and 15,499.50 is: 21,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.66 : 36,820.35 = 15,499.50 : x
  2. Step 2: Convert to fraction form
    26,679.66/36,820.35 = 15,499.50/x
  3. Step 3: Cross multiply
    26,679.66x = 36,820.35 × 15,499.50
  4. Step 4: Simplify right side
    26,679.66x = 570,697,014.83
  5. Step 5: Solve for x
    x = 570,697,014.83/26,679.66
  6. Step 6: Final answer
    x = 21,390.72

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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.