Home / 21,895.56-32,814.72-19,115.16

Finding the Fourth Proportional to 21,895.56, 32,814.72 and 19,115.16

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Solution

The fourth proportional to 21,895.56, 32,814.72 and 19,115.16 is: 28,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.56 : 32,814.72 = 19,115.16 : x
  2. Step 2: Convert to fraction form
    21,895.56/32,814.72 = 19,115.16/x
  3. Step 3: Cross multiply
    21,895.56x = 32,814.72 × 19,115.16
  4. Step 4: Simplify right side
    21,895.56x = 627,258,623.16
  5. Step 5: Solve for x
    x = 627,258,623.16/21,895.56
  6. Step 6: Final answer
    x = 28,647.75

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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.