Home / 28,157.26-42,243.86-14,100.32

Finding the Fourth Proportional to 28,157.26, 42,243.86 and 14,100.32

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Solution

The fourth proportional to 28,157.26, 42,243.86 and 14,100.32 is: 21,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.26 : 42,243.86 = 14,100.32 : x
  2. Step 2: Convert to fraction form
    28,157.26/42,243.86 = 14,100.32/x
  3. Step 3: Cross multiply
    28,157.26x = 42,243.86 × 14,100.32
  4. Step 4: Simplify right side
    28,157.26x = 595,651,944.04
  5. Step 5: Solve for x
    x = 595,651,944.04/28,157.26
  6. Step 6: Final answer
    x = 21,154.47

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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.