Home / 28,054.88-42,138.36-17,543.60

Finding the Fourth Proportional to 28,054.88, 42,138.36 and 17,543.60

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Solution

The fourth proportional to 28,054.88, 42,138.36 and 17,543.60 is: 26,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.88 : 42,138.36 = 17,543.60 : x
  2. Step 2: Convert to fraction form
    28,054.88/42,138.36 = 17,543.60/x
  3. Step 3: Cross multiply
    28,054.88x = 42,138.36 × 17,543.60
  4. Step 4: Simplify right side
    28,054.88x = 739,258,532.50
  5. Step 5: Solve for x
    x = 739,258,532.50/28,054.88
  6. Step 6: Final answer
    x = 26,350.44

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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.