Home / 28,190.77-42,289.80-9,462.76

Finding the Fourth Proportional to 28,190.77, 42,289.80 and 9,462.76

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Solution

The fourth proportional to 28,190.77, 42,289.80 and 9,462.76 is: 14,195.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.77 : 42,289.80 = 9,462.76 : x
  2. Step 2: Convert to fraction form
    28,190.77/42,289.80 = 9,462.76/x
  3. Step 3: Cross multiply
    28,190.77x = 42,289.80 × 9,462.76
  4. Step 4: Simplify right side
    28,190.77x = 400,178,086.64
  5. Step 5: Solve for x
    x = 400,178,086.64/28,190.77
  6. Step 6: Final answer
    x = 14,195.36

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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.