Home / 20,744.70-31,068.45-14,135.10

Finding the Fourth Proportional to 20,744.70, 31,068.45 and 14,135.10

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Solution

The fourth proportional to 20,744.70, 31,068.45 and 14,135.10 is: 21,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.70 : 31,068.45 = 14,135.10 : x
  2. Step 2: Convert to fraction form
    20,744.70/31,068.45 = 14,135.10/x
  3. Step 3: Cross multiply
    20,744.70x = 31,068.45 × 14,135.10
  4. Step 4: Simplify right side
    20,744.70x = 439,155,647.60
  5. Step 5: Solve for x
    x = 439,155,647.60/20,744.70
  6. Step 6: Final answer
    x = 21,169.53

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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.