Home / 28,014.66-42,022.26-13,181.40

Finding the Fourth Proportional to 28,014.66, 42,022.26 and 13,181.40

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Solution

The fourth proportional to 28,014.66, 42,022.26 and 13,181.40 is: 19,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.66 : 42,022.26 = 13,181.40 : x
  2. Step 2: Convert to fraction form
    28,014.66/42,022.26 = 13,181.40/x
  3. Step 3: Cross multiply
    28,014.66x = 42,022.26 × 13,181.40
  4. Step 4: Simplify right side
    28,014.66x = 553,912,217.96
  5. Step 5: Solve for x
    x = 553,912,217.96/28,014.66
  6. Step 6: Final answer
    x = 19,772.23

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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.