Home / 28,969.13-43,457.40-8,192.63

Finding the Fourth Proportional to 28,969.13, 43,457.40 and 8,192.63

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Solution

The fourth proportional to 28,969.13, 43,457.40 and 8,192.63 is: 12,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.13 : 43,457.40 = 8,192.63 : x
  2. Step 2: Convert to fraction form
    28,969.13/43,457.40 = 8,192.63/x
  3. Step 3: Cross multiply
    28,969.13x = 43,457.40 × 8,192.63
  4. Step 4: Simplify right side
    28,969.13x = 356,030,181.68
  5. Step 5: Solve for x
    x = 356,030,181.68/28,969.13
  6. Step 6: Final answer
    x = 12,289.99

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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.