Home / 42,000.37-63,012.86-12,418.97

Finding the Fourth Proportional to 42,000.37, 63,012.86 and 12,418.97

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Solution

The fourth proportional to 42,000.37, 63,012.86 and 12,418.97 is: 18,632.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,000.37 : 63,012.86 = 12,418.97 : x
  2. Step 2: Convert to fraction form
    42,000.37/63,012.86 = 12,418.97/x
  3. Step 3: Cross multiply
    42,000.37x = 63,012.86 × 12,418.97
  4. Step 4: Simplify right side
    42,000.37x = 782,554,817.95
  5. Step 5: Solve for x
    x = 782,554,817.95/42,000.37
  6. Step 6: Final answer
    x = 18,632.09

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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.