Home / 21,856.36-32,776.51-7,812.60

Finding the Fourth Proportional to 21,856.36, 32,776.51 and 7,812.60

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Solution

The fourth proportional to 21,856.36, 32,776.51 and 7,812.60 is: 11,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,856.36 : 32,776.51 = 7,812.60 : x
  2. Step 2: Convert to fraction form
    21,856.36/32,776.51 = 7,812.60/x
  3. Step 3: Cross multiply
    21,856.36x = 32,776.51 × 7,812.60
  4. Step 4: Simplify right side
    21,856.36x = 256,069,771.79
  5. Step 5: Solve for x
    x = 256,069,771.79/21,856.36
  6. Step 6: Final answer
    x = 11,716.03

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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.