Home / 21,947.24-30,286.98-11,875.46

Finding the Fourth Proportional to 21,947.24, 30,286.98 and 11,875.46

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Solution

The fourth proportional to 21,947.24, 30,286.98 and 11,875.46 is: 16,388.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.24 : 30,286.98 = 11,875.46 : x
  2. Step 2: Convert to fraction form
    21,947.24/30,286.98 = 11,875.46/x
  3. Step 3: Cross multiply
    21,947.24x = 30,286.98 × 11,875.46
  4. Step 4: Simplify right side
    21,947.24x = 359,671,819.51
  5. Step 5: Solve for x
    x = 359,671,819.51/21,947.24
  6. Step 6: Final answer
    x = 16,388.02

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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.