Home / 20,890.14-31,327.46-14,646.96

Finding the Fourth Proportional to 20,890.14, 31,327.46 and 14,646.96

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Solution

The fourth proportional to 20,890.14, 31,327.46 and 14,646.96 is: 21,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890.14 : 31,327.46 = 14,646.96 : x
  2. Step 2: Convert to fraction form
    20,890.14/31,327.46 = 14,646.96/x
  3. Step 3: Cross multiply
    20,890.14x = 31,327.46 × 14,646.96
  4. Step 4: Simplify right side
    20,890.14x = 458,852,053.52
  5. Step 5: Solve for x
    x = 458,852,053.52/20,890.14
  6. Step 6: Final answer
    x = 21,965.01

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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.