Home / 30,349.74-45,514.77-11,628.78

Finding the Fourth Proportional to 30,349.74, 45,514.77 and 11,628.78

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Solution

The fourth proportional to 30,349.74, 45,514.77 and 11,628.78 is: 17,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,349.74 : 45,514.77 = 11,628.78 : x
  2. Step 2: Convert to fraction form
    30,349.74/45,514.77 = 11,628.78/x
  3. Step 3: Cross multiply
    30,349.74x = 45,514.77 × 11,628.78
  4. Step 4: Simplify right side
    30,349.74x = 529,281,247.08
  5. Step 5: Solve for x
    x = 529,281,247.08/30,349.74
  6. Step 6: Final answer
    x = 17,439.40

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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.