Home / 42,190.75-58,271.07-28,738.68

Finding the Fourth Proportional to 42,190.75, 58,271.07 and 28,738.68

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Solution

The fourth proportional to 42,190.75, 58,271.07 and 28,738.68 is: 39,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,190.75 : 58,271.07 = 28,738.68 : x
  2. Step 2: Convert to fraction form
    42,190.75/58,271.07 = 28,738.68/x
  3. Step 3: Cross multiply
    42,190.75x = 58,271.07 × 28,738.68
  4. Step 4: Simplify right side
    42,190.75x = 1,674,633,633.99
  5. Step 5: Solve for x
    x = 1,674,633,633.99/42,190.75
  6. Step 6: Final answer
    x = 39,691.96

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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.