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Finding the Fourth Proportional to 42,010.99, 57,975.41 and 22,890.99

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Solution

The fourth proportional to 42,010.99, 57,975.41 and 22,890.99 is: 31,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,010.99 : 57,975.41 = 22,890.99 : x
  2. Step 2: Convert to fraction form
    42,010.99/57,975.41 = 22,890.99/x
  3. Step 3: Cross multiply
    42,010.99x = 57,975.41 × 22,890.99
  4. Step 4: Simplify right side
    42,010.99x = 1,327,114,530.56
  5. Step 5: Solve for x
    x = 1,327,114,530.56/42,010.99
  6. Step 6: Final answer
    x = 31,589.70

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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.