Home / 28,181.99-42,288.55-15,709.04

Finding the Fourth Proportional to 28,181.99, 42,288.55 and 15,709.04

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Solution

The fourth proportional to 28,181.99, 42,288.55 and 15,709.04 is: 23,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.99 : 42,288.55 = 15,709.04 : x
  2. Step 2: Convert to fraction form
    28,181.99/42,288.55 = 15,709.04/x
  3. Step 3: Cross multiply
    28,181.99x = 42,288.55 × 15,709.04
  4. Step 4: Simplify right side
    28,181.99x = 664,312,431.36
  5. Step 5: Solve for x
    x = 664,312,431.36/28,181.99
  6. Step 6: Final answer
    x = 23,572.23

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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.