Home / 30,889.88-42,627.75-17,277.76

Finding the Fourth Proportional to 30,889.88, 42,627.75 and 17,277.76

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Solution

The fourth proportional to 30,889.88, 42,627.75 and 17,277.76 is: 23,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.88 : 42,627.75 = 17,277.76 : x
  2. Step 2: Convert to fraction form
    30,889.88/42,627.75 = 17,277.76/x
  3. Step 3: Cross multiply
    30,889.88x = 42,627.75 × 17,277.76
  4. Step 4: Simplify right side
    30,889.88x = 736,512,022.33
  5. Step 5: Solve for x
    x = 736,512,022.33/30,889.88
  6. Step 6: Final answer
    x = 23,843.15

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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.