Home / 21,313.19-31,947.49-7,268.30

Finding the Fourth Proportional to 21,313.19, 31,947.49 and 7,268.30

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Solution

The fourth proportional to 21,313.19, 31,947.49 and 7,268.30 is: 10,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.19 : 31,947.49 = 7,268.30 : x
  2. Step 2: Convert to fraction form
    21,313.19/31,947.49 = 7,268.30/x
  3. Step 3: Cross multiply
    21,313.19x = 31,947.49 × 7,268.30
  4. Step 4: Simplify right side
    21,313.19x = 232,203,941.57
  5. Step 5: Solve for x
    x = 232,203,941.57/21,313.19
  6. Step 6: Final answer
    x = 10,894.85

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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.