Home / 28,899.20-43,340.16-15,040.64

Finding the Fourth Proportional to 28,899.20, 43,340.16 and 15,040.64

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Solution

The fourth proportional to 28,899.20, 43,340.16 and 15,040.64 is: 22,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.20 : 43,340.16 = 15,040.64 : x
  2. Step 2: Convert to fraction form
    28,899.20/43,340.16 = 15,040.64/x
  3. Step 3: Cross multiply
    28,899.20x = 43,340.16 × 15,040.64
  4. Step 4: Simplify right side
    28,899.20x = 651,863,744.10
  5. Step 5: Solve for x
    x = 651,863,744.10/28,899.20
  6. Step 6: Final answer
    x = 22,556.46

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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.