Home / 30,792.11-42,489.94-22,730.05

Finding the Fourth Proportional to 30,792.11, 42,489.94 and 22,730.05

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Solution

The fourth proportional to 30,792.11, 42,489.94 and 22,730.05 is: 31,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,792.11 : 42,489.94 = 22,730.05 : x
  2. Step 2: Convert to fraction form
    30,792.11/42,489.94 = 22,730.05/x
  3. Step 3: Cross multiply
    30,792.11x = 42,489.94 × 22,730.05
  4. Step 4: Simplify right side
    30,792.11x = 965,798,330.07
  5. Step 5: Solve for x
    x = 965,798,330.07/30,792.11
  6. Step 6: Final answer
    x = 31,365.13

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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.