Home / 21,898.09-30,219.36-12,466.63

Finding the Fourth Proportional to 21,898.09, 30,219.36 and 12,466.63

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Solution

The fourth proportional to 21,898.09, 30,219.36 and 12,466.63 is: 17,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.09 : 30,219.36 = 12,466.63 : x
  2. Step 2: Convert to fraction form
    21,898.09/30,219.36 = 12,466.63/x
  3. Step 3: Cross multiply
    21,898.09x = 30,219.36 × 12,466.63
  4. Step 4: Simplify right side
    21,898.09x = 376,733,428.86
  5. Step 5: Solve for x
    x = 376,733,428.86/21,898.09
  6. Step 6: Final answer
    x = 17,203.94

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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.