Home / 42,573.52-63,860.10-12,991.26

Finding the Fourth Proportional to 42,573.52, 63,860.10 and 12,991.26

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Solution

The fourth proportional to 42,573.52, 63,860.10 and 12,991.26 is: 19,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,573.52 : 63,860.10 = 12,991.26 : x
  2. Step 2: Convert to fraction form
    42,573.52/63,860.10 = 12,991.26/x
  3. Step 3: Cross multiply
    42,573.52x = 63,860.10 × 12,991.26
  4. Step 4: Simplify right side
    42,573.52x = 829,622,843.43
  5. Step 5: Solve for x
    x = 829,622,843.43/42,573.52
  6. Step 6: Final answer
    x = 19,486.83

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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.