Home / 22,376.56-30,880.44-12,818.20

Finding the Fourth Proportional to 22,376.56, 30,880.44 and 12,818.20

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Solution

The fourth proportional to 22,376.56, 30,880.44 and 12,818.20 is: 17,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.56 : 30,880.44 = 12,818.20 : x
  2. Step 2: Convert to fraction form
    22,376.56/30,880.44 = 12,818.20/x
  3. Step 3: Cross multiply
    22,376.56x = 30,880.44 × 12,818.20
  4. Step 4: Simplify right side
    22,376.56x = 395,831,656.01
  5. Step 5: Solve for x
    x = 395,831,656.01/22,376.56
  6. Step 6: Final answer
    x = 17,689.57

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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.