Home / 28,660.93-42,991.36-18,797.90

Finding the Fourth Proportional to 28,660.93, 42,991.36 and 18,797.90

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Solution

The fourth proportional to 28,660.93, 42,991.36 and 18,797.90 is: 28,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.93 : 42,991.36 = 18,797.90 : x
  2. Step 2: Convert to fraction form
    28,660.93/42,991.36 = 18,797.90/x
  3. Step 3: Cross multiply
    28,660.93x = 42,991.36 × 18,797.90
  4. Step 4: Simplify right side
    28,660.93x = 808,147,024.19
  5. Step 5: Solve for x
    x = 808,147,024.19/28,660.93
  6. Step 6: Final answer
    x = 28,196.82

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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.