Home / 30,288.21-45,434.13-9,511.71

Finding the Fourth Proportional to 30,288.21, 45,434.13 and 9,511.71

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Solution

The fourth proportional to 30,288.21, 45,434.13 and 9,511.71 is: 14,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.21 : 45,434.13 = 9,511.71 : x
  2. Step 2: Convert to fraction form
    30,288.21/45,434.13 = 9,511.71/x
  3. Step 3: Cross multiply
    30,288.21x = 45,434.13 × 9,511.71
  4. Step 4: Simplify right side
    30,288.21x = 432,156,268.66
  5. Step 5: Solve for x
    x = 432,156,268.66/30,288.21
  6. Step 6: Final answer
    x = 14,268.13

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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.