Home / 30,109.45-45,164.17-12,569.71

Finding the Fourth Proportional to 30,109.45, 45,164.17 and 12,569.71

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Solution

The fourth proportional to 30,109.45, 45,164.17 and 12,569.71 is: 18,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.45 : 45,164.17 = 12,569.71 : x
  2. Step 2: Convert to fraction form
    30,109.45/45,164.17 = 12,569.71/x
  3. Step 3: Cross multiply
    30,109.45x = 45,164.17 × 12,569.71
  4. Step 4: Simplify right side
    30,109.45x = 567,700,230.62
  5. Step 5: Solve for x
    x = 567,700,230.62/30,109.45
  6. Step 6: Final answer
    x = 18,854.56

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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.