Home / 19,840.31-27,378.73-10,887.63

Finding the Fourth Proportional to 19,840.31, 27,378.73 and 10,887.63

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Solution

The fourth proportional to 19,840.31, 27,378.73 and 10,887.63 is: 15,024.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.31 : 27,378.73 = 10,887.63 : x
  2. Step 2: Convert to fraction form
    19,840.31/27,378.73 = 10,887.63/x
  3. Step 3: Cross multiply
    19,840.31x = 27,378.73 × 10,887.63
  4. Step 4: Simplify right side
    19,840.31x = 298,089,485.81
  5. Step 5: Solve for x
    x = 298,089,485.81/19,840.31
  6. Step 6: Final answer
    x = 15,024.44

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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.