Home / 42,004.24-62,984.40-12,418.08

Finding the Fourth Proportional to 42,004.24, 62,984.40 and 12,418.08

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Solution

The fourth proportional to 42,004.24, 62,984.40 and 12,418.08 is: 18,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,004.24 : 62,984.40 = 12,418.08 : x
  2. Step 2: Convert to fraction form
    42,004.24/62,984.40 = 12,418.08/x
  3. Step 3: Cross multiply
    42,004.24x = 62,984.40 × 12,418.08
  4. Step 4: Simplify right side
    42,004.24x = 782,145,317.95
  5. Step 5: Solve for x
    x = 782,145,317.95/42,004.24
  6. Step 6: Final answer
    x = 18,620.63

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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.