Home / 30,618.72-45,906.48-11,883.15

Finding the Fourth Proportional to 30,618.72, 45,906.48 and 11,883.15

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Solution

The fourth proportional to 30,618.72, 45,906.48 and 11,883.15 is: 17,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.72 : 45,906.48 = 11,883.15 : x
  2. Step 2: Convert to fraction form
    30,618.72/45,906.48 = 11,883.15/x
  3. Step 3: Cross multiply
    30,618.72x = 45,906.48 × 11,883.15
  4. Step 4: Simplify right side
    30,618.72x = 545,513,587.81
  5. Step 5: Solve for x
    x = 545,513,587.81/30,618.72
  6. Step 6: Final answer
    x = 17,816.34

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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.