Home / 21,236.37-31,854.34-5,653.99

Finding the Fourth Proportional to 21,236.37, 31,854.34 and 5,653.99

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Solution

The fourth proportional to 21,236.37, 31,854.34 and 5,653.99 is: 8,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236.37 : 31,854.34 = 5,653.99 : x
  2. Step 2: Convert to fraction form
    21,236.37/31,854.34 = 5,653.99/x
  3. Step 3: Cross multiply
    21,236.37x = 31,854.34 × 5,653.99
  4. Step 4: Simplify right side
    21,236.37x = 180,104,119.82
  5. Step 5: Solve for x
    x = 180,104,119.82/21,236.37
  6. Step 6: Final answer
    x = 8,480.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.