Home / 30,566.64-42,180.48-17,139.36

Finding the Fourth Proportional to 30,566.64, 42,180.48 and 17,139.36

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Solution

The fourth proportional to 30,566.64, 42,180.48 and 17,139.36 is: 23,651.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,566.64 : 42,180.48 = 17,139.36 : x
  2. Step 2: Convert to fraction form
    30,566.64/42,180.48 = 17,139.36/x
  3. Step 3: Cross multiply
    30,566.64x = 42,180.48 × 17,139.36
  4. Step 4: Simplify right side
    30,566.64x = 722,946,431.69
  5. Step 5: Solve for x
    x = 722,946,431.69/30,566.64
  6. Step 6: Final answer
    x = 23,651.49

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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.