Home / 28,961.36-40,008.84-19,571.12

Finding the Fourth Proportional to 28,961.36, 40,008.84 and 19,571.12

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Solution

The fourth proportional to 28,961.36, 40,008.84 and 19,571.12 is: 27,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.36 : 40,008.84 = 19,571.12 : x
  2. Step 2: Convert to fraction form
    28,961.36/40,008.84 = 19,571.12/x
  3. Step 3: Cross multiply
    28,961.36x = 40,008.84 × 19,571.12
  4. Step 4: Simplify right side
    28,961.36x = 783,017,808.70
  5. Step 5: Solve for x
    x = 783,017,808.70/28,961.36
  6. Step 6: Final answer
    x = 27,036.64

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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.