Home / 30,166.48-45,481.15-28,133.68

Finding the Fourth Proportional to 30,166.48, 45,481.15 and 28,133.68

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Solution

The fourth proportional to 30,166.48, 45,481.15 and 28,133.68 is: 42,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,166.48 : 45,481.15 = 28,133.68 : x
  2. Step 2: Convert to fraction form
    30,166.48/45,481.15 = 28,133.68/x
  3. Step 3: Cross multiply
    30,166.48x = 45,481.15 × 28,133.68
  4. Step 4: Simplify right side
    30,166.48x = 1,279,552,120.13
  5. Step 5: Solve for x
    x = 1,279,552,120.13/30,166.48
  6. Step 6: Final answer
    x = 42,416.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.