Home / 22,012.77-30,374.42-12,579.51

Finding the Fourth Proportional to 22,012.77, 30,374.42 and 12,579.51

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Solution

The fourth proportional to 22,012.77, 30,374.42 and 12,579.51 is: 17,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.77 : 30,374.42 = 12,579.51 : x
  2. Step 2: Convert to fraction form
    22,012.77/30,374.42 = 12,579.51/x
  3. Step 3: Cross multiply
    22,012.77x = 30,374.42 × 12,579.51
  4. Step 4: Simplify right side
    22,012.77x = 382,095,257.24
  5. Step 5: Solve for x
    x = 382,095,257.24/22,012.77
  6. Step 6: Final answer
    x = 17,357.89

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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.