Home / 28,847.55-43,271.67-10,128.12

Finding the Fourth Proportional to 28,847.55, 43,271.67 and 10,128.12

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Solution

The fourth proportional to 28,847.55, 43,271.67 and 10,128.12 is: 15,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.55 : 43,271.67 = 10,128.12 : x
  2. Step 2: Convert to fraction form
    28,847.55/43,271.67 = 10,128.12/x
  3. Step 3: Cross multiply
    28,847.55x = 43,271.67 × 10,128.12
  4. Step 4: Simplify right side
    28,847.55x = 438,260,666.36
  5. Step 5: Solve for x
    x = 438,260,666.36/28,847.55
  6. Step 6: Final answer
    x = 15,192.30

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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.