Home / 28,047.10-38,704.16-15,300.54

Finding the Fourth Proportional to 28,047.10, 38,704.16 and 15,300.54

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Solution

The fourth proportional to 28,047.10, 38,704.16 and 15,300.54 is: 21,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.10 : 38,704.16 = 15,300.54 : x
  2. Step 2: Convert to fraction form
    28,047.10/38,704.16 = 15,300.54/x
  3. Step 3: Cross multiply
    28,047.10x = 38,704.16 × 15,300.54
  4. Step 4: Simplify right side
    28,047.10x = 592,194,413.09
  5. Step 5: Solve for x
    x = 592,194,413.09/28,047.10
  6. Step 6: Final answer
    x = 21,114.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.