Home / 30,492.39-42,084.27-19,163.43

Finding the Fourth Proportional to 30,492.39, 42,084.27 and 19,163.43

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Solution

The fourth proportional to 30,492.39, 42,084.27 and 19,163.43 is: 26,448.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,492.39 : 42,084.27 = 19,163.43 : x
  2. Step 2: Convert to fraction form
    30,492.39/42,084.27 = 19,163.43/x
  3. Step 3: Cross multiply
    30,492.39x = 42,084.27 × 19,163.43
  4. Step 4: Simplify right side
    30,492.39x = 806,478,962.25
  5. Step 5: Solve for x
    x = 806,478,962.25/30,492.39
  6. Step 6: Final answer
    x = 26,448.53

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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.