Home / 30,643.25-42,286.25-17,030.66

Finding the Fourth Proportional to 30,643.25, 42,286.25 and 17,030.66

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Solution

The fourth proportional to 30,643.25, 42,286.25 and 17,030.66 is: 23,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.25 : 42,286.25 = 17,030.66 : x
  2. Step 2: Convert to fraction form
    30,643.25/42,286.25 = 17,030.66/x
  3. Step 3: Cross multiply
    30,643.25x = 42,286.25 × 17,030.66
  4. Step 4: Simplify right side
    30,643.25x = 720,162,577.57
  5. Step 5: Solve for x
    x = 720,162,577.57/30,643.25
  6. Step 6: Final answer
    x = 23,501.51

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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.