Home / 22,580.78-31,162.02-16,905.51

Finding the Fourth Proportional to 22,580.78, 31,162.02 and 16,905.51

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Solution

The fourth proportional to 22,580.78, 31,162.02 and 16,905.51 is: 23,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580.78 : 31,162.02 = 16,905.51 : x
  2. Step 2: Convert to fraction form
    22,580.78/31,162.02 = 16,905.51/x
  3. Step 3: Cross multiply
    22,580.78x = 31,162.02 × 16,905.51
  4. Step 4: Simplify right side
    22,580.78x = 526,809,777.33
  5. Step 5: Solve for x
    x = 526,809,777.33/22,580.78
  6. Step 6: Final answer
    x = 23,330.01

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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.