Home / 22,015.86-33,021.99-8,688.31

Finding the Fourth Proportional to 22,015.86, 33,021.99 and 8,688.31

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Solution

The fourth proportional to 22,015.86, 33,021.99 and 8,688.31 is: 13,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,015.86 : 33,021.99 = 8,688.31 : x
  2. Step 2: Convert to fraction form
    22,015.86/33,021.99 = 8,688.31/x
  3. Step 3: Cross multiply
    22,015.86x = 33,021.99 × 8,688.31
  4. Step 4: Simplify right side
    22,015.86x = 286,905,285.94
  5. Step 5: Solve for x
    x = 286,905,285.94/22,015.86
  6. Step 6: Final answer
    x = 13,031.76

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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.