Home / 43,280.13-64,913.69-13,694.12

Finding the Fourth Proportional to 43,280.13, 64,913.69 and 13,694.12

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Solution

The fourth proportional to 43,280.13, 64,913.69 and 13,694.12 is: 20,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.13 : 64,913.69 = 13,694.12 : x
  2. Step 2: Convert to fraction form
    43,280.13/64,913.69 = 13,694.12/x
  3. Step 3: Cross multiply
    43,280.13x = 64,913.69 × 13,694.12
  4. Step 4: Simplify right side
    43,280.13x = 888,935,813.60
  5. Step 5: Solve for x
    x = 888,935,813.60/43,280.13
  6. Step 6: Final answer
    x = 20,539.12

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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.