Home / 30,335.13-45,507.78-13,694.80

Finding the Fourth Proportional to 30,335.13, 45,507.78 and 13,694.80

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Solution

The fourth proportional to 30,335.13, 45,507.78 and 13,694.80 is: 20,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,335.13 : 45,507.78 = 13,694.80 : x
  2. Step 2: Convert to fraction form
    30,335.13/45,507.78 = 13,694.80/x
  3. Step 3: Cross multiply
    30,335.13x = 45,507.78 × 13,694.80
  4. Step 4: Simplify right side
    30,335.13x = 623,219,945.54
  5. Step 5: Solve for x
    x = 623,219,945.54/30,335.13
  6. Step 6: Final answer
    x = 20,544.50

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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.