Home / 28,040.07-42,023.51-11,380.60

Finding the Fourth Proportional to 28,040.07, 42,023.51 and 11,380.60

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Solution

The fourth proportional to 28,040.07, 42,023.51 and 11,380.60 is: 17,056.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.07 : 42,023.51 = 11,380.60 : x
  2. Step 2: Convert to fraction form
    28,040.07/42,023.51 = 11,380.60/x
  3. Step 3: Cross multiply
    28,040.07x = 42,023.51 × 11,380.60
  4. Step 4: Simplify right side
    28,040.07x = 478,252,796.21
  5. Step 5: Solve for x
    x = 478,252,796.21/28,040.07
  6. Step 6: Final answer
    x = 17,056.05

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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.