Home / 15,975.40-23,962.98-4,128.16

Finding the Fourth Proportional to 15,975.40, 23,962.98 and 4,128.16

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Solution

The fourth proportional to 15,975.40, 23,962.98 and 4,128.16 is: 6,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,975.40 : 23,962.98 = 4,128.16 : x
  2. Step 2: Convert to fraction form
    15,975.40/23,962.98 = 4,128.16/x
  3. Step 3: Cross multiply
    15,975.40x = 23,962.98 × 4,128.16
  4. Step 4: Simplify right side
    15,975.40x = 98,923,015.52
  5. Step 5: Solve for x
    x = 98,923,015.52/15,975.40
  6. Step 6: Final answer
    x = 6,192.21

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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.