Home / 30,031.31-41,444.37-19,942.35

Finding the Fourth Proportional to 30,031.31, 41,444.37 and 19,942.35

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Solution

The fourth proportional to 30,031.31, 41,444.37 and 19,942.35 is: 27,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.31 : 41,444.37 = 19,942.35 : x
  2. Step 2: Convert to fraction form
    30,031.31/41,444.37 = 19,942.35/x
  3. Step 3: Cross multiply
    30,031.31x = 41,444.37 × 19,942.35
  4. Step 4: Simplify right side
    30,031.31x = 826,498,132.07
  5. Step 5: Solve for x
    x = 826,498,132.07/30,031.31
  6. Step 6: Final answer
    x = 27,521.21

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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.