Home / 22,051.49-30,431.63-12,623.09

Finding the Fourth Proportional to 22,051.49, 30,431.63 and 12,623.09

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Solution

The fourth proportional to 22,051.49, 30,431.63 and 12,623.09 is: 17,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.49 : 30,431.63 = 12,623.09 : x
  2. Step 2: Convert to fraction form
    22,051.49/30,431.63 = 12,623.09/x
  3. Step 3: Cross multiply
    22,051.49x = 30,431.63 × 12,623.09
  4. Step 4: Simplify right side
    22,051.49x = 384,141,083.74
  5. Step 5: Solve for x
    x = 384,141,083.74/22,051.49
  6. Step 6: Final answer
    x = 17,420.19

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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.