Home / 30,164.18-45,244.04-12,390.02

Finding the Fourth Proportional to 30,164.18, 45,244.04 and 12,390.02

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Solution

The fourth proportional to 30,164.18, 45,244.04 and 12,390.02 is: 18,584.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.18 : 45,244.04 = 12,390.02 : x
  2. Step 2: Convert to fraction form
    30,164.18/45,244.04 = 12,390.02/x
  3. Step 3: Cross multiply
    30,164.18x = 45,244.04 × 12,390.02
  4. Step 4: Simplify right side
    30,164.18x = 560,574,272.31
  5. Step 5: Solve for x
    x = 560,574,272.31/30,164.18
  6. Step 6: Final answer
    x = 18,584.11

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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.