Home / 30,109.27-45,164.28-14,315.78

Finding the Fourth Proportional to 30,109.27, 45,164.28 and 14,315.78

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Solution

The fourth proportional to 30,109.27, 45,164.28 and 14,315.78 is: 21,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.27 : 45,164.28 = 14,315.78 : x
  2. Step 2: Convert to fraction form
    30,109.27/45,164.28 = 14,315.78/x
  3. Step 3: Cross multiply
    30,109.27x = 45,164.28 × 14,315.78
  4. Step 4: Simplify right side
    30,109.27x = 646,561,824.76
  5. Step 5: Solve for x
    x = 646,561,824.76/30,109.27
  6. Step 6: Final answer
    x = 21,473.85

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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.