Home / 20,318.37-30,425.45-14,069.49

Finding the Fourth Proportional to 20,318.37, 30,425.45 and 14,069.49

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Solution

The fourth proportional to 20,318.37, 30,425.45 and 14,069.49 is: 21,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.37 : 30,425.45 = 14,069.49 : x
  2. Step 2: Convert to fraction form
    20,318.37/30,425.45 = 14,069.49/x
  3. Step 3: Cross multiply
    20,318.37x = 30,425.45 × 14,069.49
  4. Step 4: Simplify right side
    20,318.37x = 428,070,494.17
  5. Step 5: Solve for x
    x = 428,070,494.17/20,318.37
  6. Step 6: Final answer
    x = 21,068.15

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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.