Home / 30,268.30-45,392.68-11,031.31

Finding the Fourth Proportional to 30,268.30, 45,392.68 and 11,031.31

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Solution

The fourth proportional to 30,268.30, 45,392.68 and 11,031.31 is: 16,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,268.30 : 45,392.68 = 11,031.31 : x
  2. Step 2: Convert to fraction form
    30,268.30/45,392.68 = 11,031.31/x
  3. Step 3: Cross multiply
    30,268.30x = 45,392.68 × 11,031.31
  4. Step 4: Simplify right side
    30,268.30x = 500,740,724.81
  5. Step 5: Solve for x
    x = 500,740,724.81/30,268.30
  6. Step 6: Final answer
    x = 16,543.40

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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.