Home / 42,190.32-58,270.44-28,738.20

Finding the Fourth Proportional to 42,190.32, 58,270.44 and 28,738.20

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Solution

The fourth proportional to 42,190.32, 58,270.44 and 28,738.20 is: 39,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,190.32 : 58,270.44 = 28,738.20 : x
  2. Step 2: Convert to fraction form
    42,190.32/58,270.44 = 28,738.20/x
  3. Step 3: Cross multiply
    42,190.32x = 58,270.44 × 28,738.20
  4. Step 4: Simplify right side
    42,190.32x = 1,674,587,558.81
  5. Step 5: Solve for x
    x = 1,674,587,558.81/42,190.32
  6. Step 6: Final answer
    x = 39,691.27

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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.