Home / 30,222.72-45,308.16-10,488.96

Finding the Fourth Proportional to 30,222.72, 45,308.16 and 10,488.96

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Solution

The fourth proportional to 30,222.72, 45,308.16 and 10,488.96 is: 15,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222.72 : 45,308.16 = 10,488.96 : x
  2. Step 2: Convert to fraction form
    30,222.72/45,308.16 = 10,488.96/x
  3. Step 3: Cross multiply
    30,222.72x = 45,308.16 × 10,488.96
  4. Step 4: Simplify right side
    30,222.72x = 475,235,477.91
  5. Step 5: Solve for x
    x = 475,235,477.91/30,222.72
  6. Step 6: Final answer
    x = 15,724.44

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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.