Home / 30,646.64-42,293.36-17,220.48

Finding the Fourth Proportional to 30,646.64, 42,293.36 and 17,220.48

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Solution

The fourth proportional to 30,646.64, 42,293.36 and 17,220.48 is: 23,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646.64 : 42,293.36 = 17,220.48 : x
  2. Step 2: Convert to fraction form
    30,646.64/42,293.36 = 17,220.48/x
  3. Step 3: Cross multiply
    30,646.64x = 42,293.36 × 17,220.48
  4. Step 4: Simplify right side
    30,646.64x = 728,311,960.01
  5. Step 5: Solve for x
    x = 728,311,960.01/30,646.64
  6. Step 6: Final answer
    x = 23,764.82

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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.