Home / 30,372.72-41,912.31-19,041.76

Finding the Fourth Proportional to 30,372.72, 41,912.31 and 19,041.76

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Solution

The fourth proportional to 30,372.72, 41,912.31 and 19,041.76 is: 26,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.72 : 41,912.31 = 19,041.76 : x
  2. Step 2: Convert to fraction form
    30,372.72/41,912.31 = 19,041.76/x
  3. Step 3: Cross multiply
    30,372.72x = 41,912.31 × 19,041.76
  4. Step 4: Simplify right side
    30,372.72x = 798,084,148.07
  5. Step 5: Solve for x
    x = 798,084,148.07/30,372.72
  6. Step 6: Final answer
    x = 26,276.35

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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.