Home / 15,415.16-23,133.63-13,928

Finding the Fourth Proportional to 15,415.16, 23,133.63 and 13,928

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Solution

The fourth proportional to 15,415.16, 23,133.63 and 13,928 is: 20,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415.16 : 23,133.63 = 13,928 : x
  2. Step 2: Convert to fraction form
    15,415.16/23,133.63 = 13,928/x
  3. Step 3: Cross multiply
    15,415.16x = 23,133.63 × 13,928
  4. Step 4: Simplify right side
    15,415.16x = 322,205,198.64
  5. Step 5: Solve for x
    x = 322,205,198.64/15,415.16
  6. Step 6: Final answer
    x = 20,901.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.