Home / 21,670.40-32,505.76-7,816.32

Finding the Fourth Proportional to 21,670.40, 32,505.76 and 7,816.32

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Solution

The fourth proportional to 21,670.40, 32,505.76 and 7,816.32 is: 11,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.40 : 32,505.76 = 7,816.32 : x
  2. Step 2: Convert to fraction form
    21,670.40/32,505.76 = 7,816.32/x
  3. Step 3: Cross multiply
    21,670.40x = 32,505.76 × 7,816.32
  4. Step 4: Simplify right side
    21,670.40x = 254,075,422.00
  5. Step 5: Solve for x
    x = 254,075,422.00/21,670.40
  6. Step 6: Final answer
    x = 11,724.54

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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.