Home / 28,465.14-42,697.61-7,688.64

Finding the Fourth Proportional to 28,465.14, 42,697.61 and 7,688.64

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Solution

The fourth proportional to 28,465.14, 42,697.61 and 7,688.64 is: 11,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.14 : 42,697.61 = 7,688.64 : x
  2. Step 2: Convert to fraction form
    28,465.14/42,697.61 = 7,688.64/x
  3. Step 3: Cross multiply
    28,465.14x = 42,697.61 × 7,688.64
  4. Step 4: Simplify right side
    28,465.14x = 328,286,357.88
  5. Step 5: Solve for x
    x = 328,286,357.88/28,465.14
  6. Step 6: Final answer
    x = 11,532.93

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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.