Home / 28,855.21-43,280.65-10,135.41

Finding the Fourth Proportional to 28,855.21, 43,280.65 and 10,135.41

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Solution

The fourth proportional to 28,855.21, 43,280.65 and 10,135.41 is: 15,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.21 : 43,280.65 = 10,135.41 : x
  2. Step 2: Convert to fraction form
    28,855.21/43,280.65 = 10,135.41/x
  3. Step 3: Cross multiply
    28,855.21x = 43,280.65 × 10,135.41
  4. Step 4: Simplify right side
    28,855.21x = 438,667,132.82
  5. Step 5: Solve for x
    x = 438,667,132.82/28,855.21
  6. Step 6: Final answer
    x = 15,202.35

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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.