Home / 21,898.02-30,219.50-12,467.19

Finding the Fourth Proportional to 21,898.02, 30,219.50 and 12,467.19

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Solution

The fourth proportional to 21,898.02, 30,219.50 and 12,467.19 is: 17,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.02 : 30,219.50 = 12,467.19 : x
  2. Step 2: Convert to fraction form
    21,898.02/30,219.50 = 12,467.19/x
  3. Step 3: Cross multiply
    21,898.02x = 30,219.50 × 12,467.19
  4. Step 4: Simplify right side
    21,898.02x = 376,752,185.87
  5. Step 5: Solve for x
    x = 376,752,185.87/21,898.02
  6. Step 6: Final answer
    x = 17,204.85

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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.