Home / 22,358.84-30,839.58-18,978.34

Finding the Fourth Proportional to 22,358.84, 30,839.58 and 18,978.34

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Solution

The fourth proportional to 22,358.84, 30,839.58 and 18,978.34 is: 26,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,358.84 : 30,839.58 = 18,978.34 : x
  2. Step 2: Convert to fraction form
    22,358.84/30,839.58 = 18,978.34/x
  3. Step 3: Cross multiply
    22,358.84x = 30,839.58 × 18,978.34
  4. Step 4: Simplify right side
    22,358.84x = 585,283,880.50
  5. Step 5: Solve for x
    x = 585,283,880.50/22,358.84
  6. Step 6: Final answer
    x = 26,176.84

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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.