Home / 21,848.56-30,150.34-12,288.87

Finding the Fourth Proportional to 21,848.56, 30,150.34 and 12,288.87

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Solution

The fourth proportional to 21,848.56, 30,150.34 and 12,288.87 is: 16,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.56 : 30,150.34 = 12,288.87 : x
  2. Step 2: Convert to fraction form
    21,848.56/30,150.34 = 12,288.87/x
  3. Step 3: Cross multiply
    21,848.56x = 30,150.34 × 12,288.87
  4. Step 4: Simplify right side
    21,848.56x = 370,513,577.99
  5. Step 5: Solve for x
    x = 370,513,577.99/21,848.56
  6. Step 6: Final answer
    x = 16,958.26

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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.