Home / 28,104.16-42,180.48-15,636.64

Finding the Fourth Proportional to 28,104.16, 42,180.48 and 15,636.64

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Solution

The fourth proportional to 28,104.16, 42,180.48 and 15,636.64 is: 23,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.16 : 42,180.48 = 15,636.64 : x
  2. Step 2: Convert to fraction form
    28,104.16/42,180.48 = 15,636.64/x
  3. Step 3: Cross multiply
    28,104.16x = 42,180.48 × 15,636.64
  4. Step 4: Simplify right side
    28,104.16x = 659,560,980.79
  5. Step 5: Solve for x
    x = 659,560,980.79/28,104.16
  6. Step 6: Final answer
    x = 23,468.45

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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.