Home / 30,317.69-45,473.20-8,133.28

Finding the Fourth Proportional to 30,317.69, 45,473.20 and 8,133.28

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Solution

The fourth proportional to 30,317.69, 45,473.20 and 8,133.28 is: 12,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.69 : 45,473.20 = 8,133.28 : x
  2. Step 2: Convert to fraction form
    30,317.69/45,473.20 = 8,133.28/x
  3. Step 3: Cross multiply
    30,317.69x = 45,473.20 × 8,133.28
  4. Step 4: Simplify right side
    30,317.69x = 369,846,134.08
  5. Step 5: Solve for x
    x = 369,846,134.08/30,317.69
  6. Step 6: Final answer
    x = 12,199.02

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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.