Home / 26,499.18-39,711.86-19,917.70

Finding the Fourth Proportional to 26,499.18, 39,711.86 and 19,917.70

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Solution

The fourth proportional to 26,499.18, 39,711.86 and 19,917.70 is: 29,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,499.18 : 39,711.86 = 19,917.70 : x
  2. Step 2: Convert to fraction form
    26,499.18/39,711.86 = 19,917.70/x
  3. Step 3: Cross multiply
    26,499.18x = 39,711.86 × 19,917.70
  4. Step 4: Simplify right side
    26,499.18x = 790,968,913.92
  5. Step 5: Solve for x
    x = 790,968,913.92/26,499.18
  6. Step 6: Final answer
    x = 29,848.81

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1.5x scale

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.