Home / 28,651.93-42,977.66-15,587.30

Finding the Fourth Proportional to 28,651.93, 42,977.66 and 15,587.30

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Solution

The fourth proportional to 28,651.93, 42,977.66 and 15,587.30 is: 23,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.93 : 42,977.66 = 15,587.30 : x
  2. Step 2: Convert to fraction form
    28,651.93/42,977.66 = 15,587.30/x
  3. Step 3: Cross multiply
    28,651.93x = 42,977.66 × 15,587.30
  4. Step 4: Simplify right side
    28,651.93x = 669,905,709.23
  5. Step 5: Solve for x
    x = 669,905,709.23/28,651.93
  6. Step 6: Final answer
    x = 23,380.83

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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.