Home / 21,268.97-31,903.46-5,686.19

Finding the Fourth Proportional to 21,268.97, 31,903.46 and 5,686.19

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Solution

The fourth proportional to 21,268.97, 31,903.46 and 5,686.19 is: 8,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.97 : 31,903.46 = 5,686.19 : x
  2. Step 2: Convert to fraction form
    21,268.97/31,903.46 = 5,686.19/x
  3. Step 3: Cross multiply
    21,268.97x = 31,903.46 × 5,686.19
  4. Step 4: Simplify right side
    21,268.97x = 181,409,106.79
  5. Step 5: Solve for x
    x = 181,409,106.79/21,268.97
  6. Step 6: Final answer
    x = 8,529.29

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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.