Home / 19,985.40-27,583.24-19,099.68

Finding the Fourth Proportional to 19,985.40, 27,583.24 and 19,099.68

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Solution

The fourth proportional to 19,985.40, 27,583.24 and 19,099.68 is: 26,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.40 : 27,583.24 = 19,099.68 : x
  2. Step 2: Convert to fraction form
    19,985.40/27,583.24 = 19,099.68/x
  3. Step 3: Cross multiply
    19,985.40x = 27,583.24 × 19,099.68
  4. Step 4: Simplify right side
    19,985.40x = 526,831,057.36
  5. Step 5: Solve for x
    x = 526,831,057.36/19,985.40
  6. Step 6: Final answer
    x = 26,360.80

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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.