Home / 34,620.40-51,930.60-12,437.20

Finding the Fourth Proportional to 34,620.40, 51,930.60 and 12,437.20

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Solution

The fourth proportional to 34,620.40, 51,930.60 and 12,437.20 is: 18,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,620.40 : 51,930.60 = 12,437.20 : x
  2. Step 2: Convert to fraction form
    34,620.40/51,930.60 = 12,437.20/x
  3. Step 3: Cross multiply
    34,620.40x = 51,930.60 × 12,437.20
  4. Step 4: Simplify right side
    34,620.40x = 645,871,258.32
  5. Step 5: Solve for x
    x = 645,871,258.32/34,620.40
  6. Step 6: Final answer
    x = 18,655.80

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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.