Home / 30,225.72-45,312.66-10,491.96

Finding the Fourth Proportional to 30,225.72, 45,312.66 and 10,491.96

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Solution

The fourth proportional to 30,225.72, 45,312.66 and 10,491.96 is: 15,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,225.72 : 45,312.66 = 10,491.96 : x
  2. Step 2: Convert to fraction form
    30,225.72/45,312.66 = 10,491.96/x
  3. Step 3: Cross multiply
    30,225.72x = 45,312.66 × 10,491.96
  4. Step 4: Simplify right side
    30,225.72x = 475,418,616.21
  5. Step 5: Solve for x
    x = 475,418,616.21/30,225.72
  6. Step 6: Final answer
    x = 15,728.94

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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.