Home / 21,391.83-32,087.61-11,535.75

Finding the Fourth Proportional to 21,391.83, 32,087.61 and 11,535.75

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Solution

The fourth proportional to 21,391.83, 32,087.61 and 11,535.75 is: 17,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.83 : 32,087.61 = 11,535.75 : x
  2. Step 2: Convert to fraction form
    21,391.83/32,087.61 = 11,535.75/x
  3. Step 3: Cross multiply
    21,391.83x = 32,087.61 × 11,535.75
  4. Step 4: Simplify right side
    21,391.83x = 370,154,647.06
  5. Step 5: Solve for x
    x = 370,154,647.06/21,391.83
  6. Step 6: Final answer
    x = 17,303.55

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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.