Home / 30,645.35-45,925.49-13,964.61

Finding the Fourth Proportional to 30,645.35, 45,925.49 and 13,964.61

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Solution

The fourth proportional to 30,645.35, 45,925.49 and 13,964.61 is: 20,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.35 : 45,925.49 = 13,964.61 : x
  2. Step 2: Convert to fraction form
    30,645.35/45,925.49 = 13,964.61/x
  3. Step 3: Cross multiply
    30,645.35x = 45,925.49 × 13,964.61
  4. Step 4: Simplify right side
    30,645.35x = 641,331,487.09
  5. Step 5: Solve for x
    x = 641,331,487.09/30,645.35
  6. Step 6: Final answer
    x = 20,927.53

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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.