Home / 28,371.62-39,157.58-16,442.21

Finding the Fourth Proportional to 28,371.62, 39,157.58 and 16,442.21

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Solution

The fourth proportional to 28,371.62, 39,157.58 and 16,442.21 is: 22,693.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.62 : 39,157.58 = 16,442.21 : x
  2. Step 2: Convert to fraction form
    28,371.62/39,157.58 = 16,442.21/x
  3. Step 3: Cross multiply
    28,371.62x = 39,157.58 × 16,442.21
  4. Step 4: Simplify right side
    28,371.62x = 643,837,153.45
  5. Step 5: Solve for x
    x = 643,837,153.45/28,371.62
  6. Step 6: Final answer
    x = 22,693.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.