Home / 43,008.58-64,512.87-13,428.95

Finding the Fourth Proportional to 43,008.58, 64,512.87 and 13,428.95

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Solution

The fourth proportional to 43,008.58, 64,512.87 and 13,428.95 is: 20,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,008.58 : 64,512.87 = 13,428.95 : x
  2. Step 2: Convert to fraction form
    43,008.58/64,512.87 = 13,428.95/x
  3. Step 3: Cross multiply
    43,008.58x = 64,512.87 × 13,428.95
  4. Step 4: Simplify right side
    43,008.58x = 866,339,715.88
  5. Step 5: Solve for x
    x = 866,339,715.88/43,008.58
  6. Step 6: Final answer
    x = 20,143.42

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1.5x scale

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.