Home / 21,929.70-30,263.31-12,498.06

Finding the Fourth Proportional to 21,929.70, 30,263.31 and 12,498.06

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Solution

The fourth proportional to 21,929.70, 30,263.31 and 12,498.06 is: 17,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.70 : 30,263.31 = 12,498.06 : x
  2. Step 2: Convert to fraction form
    21,929.70/30,263.31 = 12,498.06/x
  3. Step 3: Cross multiply
    21,929.70x = 30,263.31 × 12,498.06
  4. Step 4: Simplify right side
    21,929.70x = 378,232,664.18
  5. Step 5: Solve for x
    x = 378,232,664.18/21,929.70
  6. Step 6: Final answer
    x = 17,247.51

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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.