Home / 21,804.24-30,095.64-13,427.76

Finding the Fourth Proportional to 21,804.24, 30,095.64 and 13,427.76

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Solution

The fourth proportional to 21,804.24, 30,095.64 and 13,427.76 is: 18,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804.24 : 30,095.64 = 13,427.76 : x
  2. Step 2: Convert to fraction form
    21,804.24/30,095.64 = 13,427.76/x
  3. Step 3: Cross multiply
    21,804.24x = 30,095.64 × 13,427.76
  4. Step 4: Simplify right side
    21,804.24x = 404,117,030.97
  5. Step 5: Solve for x
    x = 404,117,030.97/21,804.24
  6. Step 6: Final answer
    x = 18,533.87

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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.