Home / 22,378.96-30,880.48-13,426.84

Finding the Fourth Proportional to 22,378.96, 30,880.48 and 13,426.84

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Solution

The fourth proportional to 22,378.96, 30,880.48 and 13,426.84 is: 18,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.96 : 30,880.48 = 13,426.84 : x
  2. Step 2: Convert to fraction form
    22,378.96/30,880.48 = 13,426.84/x
  3. Step 3: Cross multiply
    22,378.96x = 30,880.48 × 13,426.84
  4. Step 4: Simplify right side
    22,378.96x = 414,627,264.08
  5. Step 5: Solve for x
    x = 414,627,264.08/22,378.96
  6. Step 6: Final answer
    x = 18,527.55

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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.