Home / 31,000.96-42,796.02-19,829.44

Finding the Fourth Proportional to 31,000.96, 42,796.02 and 19,829.44

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Solution

The fourth proportional to 31,000.96, 42,796.02 and 19,829.44 is: 27,374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,000.96 : 42,796.02 = 19,829.44 : x
  2. Step 2: Convert to fraction form
    31,000.96/42,796.02 = 19,829.44/x
  3. Step 3: Cross multiply
    31,000.96x = 42,796.02 × 19,829.44
  4. Step 4: Simplify right side
    31,000.96x = 848,621,110.83
  5. Step 5: Solve for x
    x = 848,621,110.83/31,000.96
  6. Step 6: Final answer
    x = 27,374.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.