Home / 21,898.42-30,219.84-12,466.98

Finding the Fourth Proportional to 21,898.42, 30,219.84 and 12,466.98

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Solution

The fourth proportional to 21,898.42, 30,219.84 and 12,466.98 is: 17,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.42 : 30,219.84 = 12,466.98 : x
  2. Step 2: Convert to fraction form
    21,898.42/30,219.84 = 12,466.98/x
  3. Step 3: Cross multiply
    21,898.42x = 30,219.84 × 12,466.98
  4. Step 4: Simplify right side
    21,898.42x = 376,750,140.88
  5. Step 5: Solve for x
    x = 376,750,140.88/21,898.42
  6. Step 6: Final answer
    x = 17,204.45

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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.