Home / 15,817.38-23,728.49-5,285.45

Finding the Fourth Proportional to 15,817.38, 23,728.49 and 5,285.45

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Solution

The fourth proportional to 15,817.38, 23,728.49 and 5,285.45 is: 7,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.38 : 23,728.49 = 5,285.45 : x
  2. Step 2: Convert to fraction form
    15,817.38/23,728.49 = 5,285.45/x
  3. Step 3: Cross multiply
    15,817.38x = 23,728.49 × 5,285.45
  4. Step 4: Simplify right side
    15,817.38x = 125,415,829.92
  5. Step 5: Solve for x
    x = 125,415,829.92/15,817.38
  6. Step 6: Final answer
    x = 7,928.99

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1.5x scale

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.