Home / 28,730.14-43,111.88-12,089.10

Finding the Fourth Proportional to 28,730.14, 43,111.88 and 12,089.10

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Solution

The fourth proportional to 28,730.14, 43,111.88 and 12,089.10 is: 18,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.14 : 43,111.88 = 12,089.10 : x
  2. Step 2: Convert to fraction form
    28,730.14/43,111.88 = 12,089.10/x
  3. Step 3: Cross multiply
    28,730.14x = 43,111.88 × 12,089.10
  4. Step 4: Simplify right side
    28,730.14x = 521,183,828.51
  5. Step 5: Solve for x
    x = 521,183,828.51/28,730.14
  6. Step 6: Final answer
    x = 18,140.66

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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.