Home / 26,442.02-39,651.35-12,390.69

Finding the Fourth Proportional to 26,442.02, 39,651.35 and 12,390.69

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Solution

The fourth proportional to 26,442.02, 39,651.35 and 12,390.69 is: 18,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,442.02 : 39,651.35 = 12,390.69 : x
  2. Step 2: Convert to fraction form
    26,442.02/39,651.35 = 12,390.69/x
  3. Step 3: Cross multiply
    26,442.02x = 39,651.35 × 12,390.69
  4. Step 4: Simplify right side
    26,442.02x = 491,307,585.93
  5. Step 5: Solve for x
    x = 491,307,585.93/26,442.02
  6. Step 6: Final answer
    x = 18,580.56

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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.