Home / 28,958.10-43,423.23-12,309.11

Finding the Fourth Proportional to 28,958.10, 43,423.23 and 12,309.11

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Solution

The fourth proportional to 28,958.10, 43,423.23 and 12,309.11 is: 18,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,958.10 : 43,423.23 = 12,309.11 : x
  2. Step 2: Convert to fraction form
    28,958.10/43,423.23 = 12,309.11/x
  3. Step 3: Cross multiply
    28,958.10x = 43,423.23 × 12,309.11
  4. Step 4: Simplify right side
    28,958.10x = 534,501,097.51
  5. Step 5: Solve for x
    x = 534,501,097.51/28,958.10
  6. Step 6: Final answer
    x = 18,457.74

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.