Home / 20,724.53-31,095.98-10,861.45

Finding the Fourth Proportional to 20,724.53, 31,095.98 and 10,861.45

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Solution

The fourth proportional to 20,724.53, 31,095.98 and 10,861.45 is: 16,296.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.53 : 31,095.98 = 10,861.45 : x
  2. Step 2: Convert to fraction form
    20,724.53/31,095.98 = 10,861.45/x
  3. Step 3: Cross multiply
    20,724.53x = 31,095.98 × 10,861.45
  4. Step 4: Simplify right side
    20,724.53x = 337,747,455.40
  5. Step 5: Solve for x
    x = 337,747,455.40/20,724.53
  6. Step 6: Final answer
    x = 16,296.99

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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.