Home / 20,994.46-31,491.65-14,400.68

Finding the Fourth Proportional to 20,994.46, 31,491.65 and 14,400.68

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Solution

The fourth proportional to 20,994.46, 31,491.65 and 14,400.68 is: 21,600.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.46 : 31,491.65 = 14,400.68 : x
  2. Step 2: Convert to fraction form
    20,994.46/31,491.65 = 14,400.68/x
  3. Step 3: Cross multiply
    20,994.46x = 31,491.65 × 14,400.68
  4. Step 4: Simplify right side
    20,994.46x = 453,501,174.32
  5. Step 5: Solve for x
    x = 453,501,174.32/20,994.46
  6. Step 6: Final answer
    x = 21,600.99

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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.