Home / 42,762.60-64,143.72-11,597.84

Finding the Fourth Proportional to 42,762.60, 64,143.72 and 11,597.84

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Solution

The fourth proportional to 42,762.60, 64,143.72 and 11,597.84 is: 17,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,762.60 : 64,143.72 = 11,597.84 : x
  2. Step 2: Convert to fraction form
    42,762.60/64,143.72 = 11,597.84/x
  3. Step 3: Cross multiply
    42,762.60x = 64,143.72 × 11,597.84
  4. Step 4: Simplify right side
    42,762.60x = 743,928,601.56
  5. Step 5: Solve for x
    x = 743,928,601.56/42,762.60
  6. Step 6: Final answer
    x = 17,396.71

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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.