Home / 30,120.66-45,196.48-14,343.58

Finding the Fourth Proportional to 30,120.66, 45,196.48 and 14,343.58

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Solution

The fourth proportional to 30,120.66, 45,196.48 and 14,343.58 is: 21,522.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.66 : 45,196.48 = 14,343.58 : x
  2. Step 2: Convert to fraction form
    30,120.66/45,196.48 = 14,343.58/x
  3. Step 3: Cross multiply
    30,120.66x = 45,196.48 × 14,343.58
  4. Step 4: Simplify right side
    30,120.66x = 648,279,401.02
  5. Step 5: Solve for x
    x = 648,279,401.02/30,120.66
  6. Step 6: Final answer
    x = 21,522.75

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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.