Home / 28,731.99-43,097.95-9,012.07

Finding the Fourth Proportional to 28,731.99, 43,097.95 and 9,012.07

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Solution

The fourth proportional to 28,731.99, 43,097.95 and 9,012.07 is: 13,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.99 : 43,097.95 = 9,012.07 : x
  2. Step 2: Convert to fraction form
    28,731.99/43,097.95 = 9,012.07/x
  3. Step 3: Cross multiply
    28,731.99x = 43,097.95 × 9,012.07
  4. Step 4: Simplify right side
    28,731.99x = 388,401,742.26
  5. Step 5: Solve for x
    x = 388,401,742.26/28,731.99
  6. Step 6: Final answer
    x = 13,518.09

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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.