Home / 28,568.93-42,853.40-7,792.43

Finding the Fourth Proportional to 28,568.93, 42,853.40 and 7,792.43

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Solution

The fourth proportional to 28,568.93, 42,853.40 and 7,792.43 is: 11,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.93 : 42,853.40 = 7,792.43 : x
  2. Step 2: Convert to fraction form
    28,568.93/42,853.40 = 7,792.43/x
  3. Step 3: Cross multiply
    28,568.93x = 42,853.40 × 7,792.43
  4. Step 4: Simplify right side
    28,568.93x = 333,931,866.53
  5. Step 5: Solve for x
    x = 333,931,866.53/28,568.93
  6. Step 6: Final answer
    x = 11,688.64

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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.