Home / 43,156.40-64,734.60-13,583.30

Finding the Fourth Proportional to 43,156.40, 64,734.60 and 13,583.30

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Solution

The fourth proportional to 43,156.40, 64,734.60 and 13,583.30 is: 20,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,156.40 : 64,734.60 = 13,583.30 : x
  2. Step 2: Convert to fraction form
    43,156.40/64,734.60 = 13,583.30/x
  3. Step 3: Cross multiply
    43,156.40x = 64,734.60 × 13,583.30
  4. Step 4: Simplify right side
    43,156.40x = 879,309,492.18
  5. Step 5: Solve for x
    x = 879,309,492.18/43,156.40
  6. Step 6: Final answer
    x = 20,374.95

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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.