Home / 22,905.86-34,289.62-20,715.62

Finding the Fourth Proportional to 22,905.86, 34,289.62 and 20,715.62

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Solution

The fourth proportional to 22,905.86, 34,289.62 and 20,715.62 is: 31,010.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.86 : 34,289.62 = 20,715.62 : x
  2. Step 2: Convert to fraction form
    22,905.86/34,289.62 = 20,715.62/x
  3. Step 3: Cross multiply
    22,905.86x = 34,289.62 × 20,715.62
  4. Step 4: Simplify right side
    22,905.86x = 710,330,737.86
  5. Step 5: Solve for x
    x = 710,330,737.86/22,905.86
  6. Step 6: Final answer
    x = 31,010.87

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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.