Home / 19,758.37-27,276.47-15,271.99

Finding the Fourth Proportional to 19,758.37, 27,276.47 and 15,271.99

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Solution

The fourth proportional to 19,758.37, 27,276.47 and 15,271.99 is: 21,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.37 : 27,276.47 = 15,271.99 : x
  2. Step 2: Convert to fraction form
    19,758.37/27,276.47 = 15,271.99/x
  3. Step 3: Cross multiply
    19,758.37x = 27,276.47 × 15,271.99
  4. Step 4: Simplify right side
    19,758.37x = 416,565,977.08
  5. Step 5: Solve for x
    x = 416,565,977.08/19,758.37
  6. Step 6: Final answer
    x = 21,083.01

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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.