Home / 39,235.20-58,723.20-30,422.40

Finding the Fourth Proportional to 39,235.20, 58,723.20 and 30,422.40

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Solution

The fourth proportional to 39,235.20, 58,723.20 and 30,422.40 is: 45,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,235.20 : 58,723.20 = 30,422.40 : x
  2. Step 2: Convert to fraction form
    39,235.20/58,723.20 = 30,422.40/x
  3. Step 3: Cross multiply
    39,235.20x = 58,723.20 × 30,422.40
  4. Step 4: Simplify right side
    39,235.20x = 1,786,500,679.68
  5. Step 5: Solve for x
    x = 1,786,500,679.68/39,235.20
  6. Step 6: Final answer
    x = 45,533.11

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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.