Home / 39,157.20-58,736.34-28,157.40

Finding the Fourth Proportional to 39,157.20, 58,736.34 and 28,157.40

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Solution

The fourth proportional to 39,157.20, 58,736.34 and 28,157.40 is: 42,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.20 : 58,736.34 = 28,157.40 : x
  2. Step 2: Convert to fraction form
    39,157.20/58,736.34 = 28,157.40/x
  3. Step 3: Cross multiply
    39,157.20x = 58,736.34 × 28,157.40
  4. Step 4: Simplify right side
    39,157.20x = 1,653,862,619.92
  5. Step 5: Solve for x
    x = 1,653,862,619.92/39,157.20
  6. Step 6: Final answer
    x = 42,236.49

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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.