Home / 30,679.92-45,985.32-15,108.48

Finding the Fourth Proportional to 30,679.92, 45,985.32 and 15,108.48

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Solution

The fourth proportional to 30,679.92, 45,985.32 and 15,108.48 is: 22,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,679.92 : 45,985.32 = 15,108.48 : x
  2. Step 2: Convert to fraction form
    30,679.92/45,985.32 = 15,108.48/x
  3. Step 3: Cross multiply
    30,679.92x = 45,985.32 × 15,108.48
  4. Step 4: Simplify right side
    30,679.92x = 694,768,287.51
  5. Step 5: Solve for x
    x = 694,768,287.51/30,679.92
  6. Step 6: Final answer
    x = 22,645.70

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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.