Home / 30,399.48-45,590.58-11,678.22

Finding the Fourth Proportional to 30,399.48, 45,590.58 and 11,678.22

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Solution

The fourth proportional to 30,399.48, 45,590.58 and 11,678.22 is: 17,514.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.48 : 45,590.58 = 11,678.22 : x
  2. Step 2: Convert to fraction form
    30,399.48/45,590.58 = 11,678.22/x
  3. Step 3: Cross multiply
    30,399.48x = 45,590.58 × 11,678.22
  4. Step 4: Simplify right side
    30,399.48x = 532,416,823.17
  5. Step 5: Solve for x
    x = 532,416,823.17/30,399.48
  6. Step 6: Final answer
    x = 17,514.01

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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.