Home / 28,511.14-42,762.65-9,790.87

Finding the Fourth Proportional to 28,511.14, 42,762.65 and 9,790.87

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Solution

The fourth proportional to 28,511.14, 42,762.65 and 9,790.87 is: 14,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.14 : 42,762.65 = 9,790.87 : x
  2. Step 2: Convert to fraction form
    28,511.14/42,762.65 = 9,790.87/x
  3. Step 3: Cross multiply
    28,511.14x = 42,762.65 × 9,790.87
  4. Step 4: Simplify right side
    28,511.14x = 418,683,357.67
  5. Step 5: Solve for x
    x = 418,683,357.67/28,511.14
  6. Step 6: Final answer
    x = 14,684.91

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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.