Home / 25,486.84-38,201.38-12,980.46

Finding the Fourth Proportional to 25,486.84, 38,201.38 and 12,980.46

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Solution

The fourth proportional to 25,486.84, 38,201.38 and 12,980.46 is: 19,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,486.84 : 38,201.38 = 12,980.46 : x
  2. Step 2: Convert to fraction form
    25,486.84/38,201.38 = 12,980.46/x
  3. Step 3: Cross multiply
    25,486.84x = 38,201.38 × 12,980.46
  4. Step 4: Simplify right side
    25,486.84x = 495,871,485.03
  5. Step 5: Solve for x
    x = 495,871,485.03/25,486.84
  6. Step 6: Final answer
    x = 19,455.98

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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.