Home / 30,561.32-42,174.48-17,132.56

Finding the Fourth Proportional to 30,561.32, 42,174.48 and 17,132.56

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Solution

The fourth proportional to 30,561.32, 42,174.48 and 17,132.56 is: 23,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.32 : 42,174.48 = 17,132.56 : x
  2. Step 2: Convert to fraction form
    30,561.32/42,174.48 = 17,132.56/x
  3. Step 3: Cross multiply
    30,561.32x = 42,174.48 × 17,132.56
  4. Step 4: Simplify right side
    30,561.32x = 722,556,809.07
  5. Step 5: Solve for x
    x = 722,556,809.07/30,561.32
  6. Step 6: Final answer
    x = 23,642.85

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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.