Home / 30,889.22-42,604.62-19,560.56

Finding the Fourth Proportional to 30,889.22, 42,604.62 and 19,560.56

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Solution

The fourth proportional to 30,889.22, 42,604.62 and 19,560.56 is: 26,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.22 : 42,604.62 = 19,560.56 : x
  2. Step 2: Convert to fraction form
    30,889.22/42,604.62 = 19,560.56/x
  3. Step 3: Cross multiply
    30,889.22x = 42,604.62 × 19,560.56
  4. Step 4: Simplify right side
    30,889.22x = 833,370,225.79
  5. Step 5: Solve for x
    x = 833,370,225.79/30,889.22
  6. Step 6: Final answer
    x = 26,979.32

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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.