Home / 22,778.88-31,420.62-14,709.45

Finding the Fourth Proportional to 22,778.88, 31,420.62 and 14,709.45

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Solution

The fourth proportional to 22,778.88, 31,420.62 and 14,709.45 is: 20,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.88 : 31,420.62 = 14,709.45 : x
  2. Step 2: Convert to fraction form
    22,778.88/31,420.62 = 14,709.45/x
  3. Step 3: Cross multiply
    22,778.88x = 31,420.62 × 14,709.45
  4. Step 4: Simplify right side
    22,778.88x = 462,180,038.86
  5. Step 5: Solve for x
    x = 462,180,038.86/22,778.88
  6. Step 6: Final answer
    x = 20,289.85

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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.