Home / 21,322.08-31,983.52-7,285.32

Finding the Fourth Proportional to 21,322.08, 31,983.52 and 7,285.32

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Solution

The fourth proportional to 21,322.08, 31,983.52 and 7,285.32 is: 10,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.08 : 31,983.52 = 7,285.32 : x
  2. Step 2: Convert to fraction form
    21,322.08/31,983.52 = 7,285.32/x
  3. Step 3: Cross multiply
    21,322.08x = 31,983.52 × 7,285.32
  4. Step 4: Simplify right side
    21,322.08x = 233,010,177.93
  5. Step 5: Solve for x
    x = 233,010,177.93/21,322.08
  6. Step 6: Final answer
    x = 10,928.12

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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.