Home / 30,556.32-42,167.58-17,127.56

Finding the Fourth Proportional to 30,556.32, 42,167.58 and 17,127.56

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Solution

The fourth proportional to 30,556.32, 42,167.58 and 17,127.56 is: 23,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.32 : 42,167.58 = 17,127.56 : x
  2. Step 2: Convert to fraction form
    30,556.32/42,167.58 = 17,127.56/x
  3. Step 3: Cross multiply
    30,556.32x = 42,167.58 × 17,127.56
  4. Step 4: Simplify right side
    30,556.32x = 722,227,756.50
  5. Step 5: Solve for x
    x = 722,227,756.50/30,556.32
  6. Step 6: Final answer
    x = 23,635.95

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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.