Home / 40,027.18-55,208.91-30,579.34

Finding the Fourth Proportional to 40,027.18, 55,208.91 and 30,579.34

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Solution

The fourth proportional to 40,027.18, 55,208.91 and 30,579.34 is: 42,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,027.18 : 55,208.91 = 30,579.34 : x
  2. Step 2: Convert to fraction form
    40,027.18/55,208.91 = 30,579.34/x
  3. Step 3: Cross multiply
    40,027.18x = 55,208.91 × 30,579.34
  4. Step 4: Simplify right side
    40,027.18x = 1,688,252,029.92
  5. Step 5: Solve for x
    x = 1,688,252,029.92/40,027.18
  6. Step 6: Final answer
    x = 42,177.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.