Home / 30,288.22-45,439.65-9,511.72

Finding the Fourth Proportional to 30,288.22, 45,439.65 and 9,511.72

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Solution

The fourth proportional to 30,288.22, 45,439.65 and 9,511.72 is: 14,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.22 : 45,439.65 = 9,511.72 : x
  2. Step 2: Convert to fraction form
    30,288.22/45,439.65 = 9,511.72/x
  3. Step 3: Cross multiply
    30,288.22x = 45,439.65 × 9,511.72
  4. Step 4: Simplify right side
    30,288.22x = 432,209,114.10
  5. Step 5: Solve for x
    x = 432,209,114.10/30,288.22
  6. Step 6: Final answer
    x = 14,269.88

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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.