Home / 20,160.36-30,245.66-14,248.89

Finding the Fourth Proportional to 20,160.36, 30,245.66 and 14,248.89

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Solution

The fourth proportional to 20,160.36, 30,245.66 and 14,248.89 is: 21,376.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.36 : 30,245.66 = 14,248.89 : x
  2. Step 2: Convert to fraction form
    20,160.36/30,245.66 = 14,248.89/x
  3. Step 3: Cross multiply
    20,160.36x = 30,245.66 × 14,248.89
  4. Step 4: Simplify right side
    20,160.36x = 430,967,011.07
  5. Step 5: Solve for x
    x = 430,967,011.07/20,160.36
  6. Step 6: Final answer
    x = 21,376.95

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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.