Home / 30,133.38-45,141.22-14,315.89

Finding the Fourth Proportional to 30,133.38, 45,141.22 and 14,315.89

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Solution

The fourth proportional to 30,133.38, 45,141.22 and 14,315.89 is: 21,445.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.38 : 45,141.22 = 14,315.89 : x
  2. Step 2: Convert to fraction form
    30,133.38/45,141.22 = 14,315.89/x
  3. Step 3: Cross multiply
    30,133.38x = 45,141.22 × 14,315.89
  4. Step 4: Simplify right side
    30,133.38x = 646,236,739.99
  5. Step 5: Solve for x
    x = 646,236,739.99/30,133.38
  6. Step 6: Final answer
    x = 21,445.88

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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.