Home / 28,431.54-42,644.42-8,710.23

Finding the Fourth Proportional to 28,431.54, 42,644.42 and 8,710.23

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Solution

The fourth proportional to 28,431.54, 42,644.42 and 8,710.23 is: 13,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.54 : 42,644.42 = 8,710.23 : x
  2. Step 2: Convert to fraction form
    28,431.54/42,644.42 = 8,710.23/x
  3. Step 3: Cross multiply
    28,431.54x = 42,644.42 × 8,710.23
  4. Step 4: Simplify right side
    28,431.54x = 371,442,662.87
  5. Step 5: Solve for x
    x = 371,442,662.87/28,431.54
  6. Step 6: Final answer
    x = 13,064.46

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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.