Home / 28,386.45-42,584.84-9,665.53

Finding the Fourth Proportional to 28,386.45, 42,584.84 and 9,665.53

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Solution

The fourth proportional to 28,386.45, 42,584.84 and 9,665.53 is: 14,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.45 : 42,584.84 = 9,665.53 : x
  2. Step 2: Convert to fraction form
    28,386.45/42,584.84 = 9,665.53/x
  3. Step 3: Cross multiply
    28,386.45x = 42,584.84 × 9,665.53
  4. Step 4: Simplify right side
    28,386.45x = 411,604,930.02
  5. Step 5: Solve for x
    x = 411,604,930.02/28,386.45
  6. Step 6: Final answer
    x = 14,500.05

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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.