Home / 28,111.44-42,173.56-9,642.32

Finding the Fourth Proportional to 28,111.44, 42,173.56 and 9,642.32

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Solution

The fourth proportional to 28,111.44, 42,173.56 and 9,642.32 is: 14,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.44 : 42,173.56 = 9,642.32 : x
  2. Step 2: Convert to fraction form
    28,111.44/42,173.56 = 9,642.32/x
  3. Step 3: Cross multiply
    28,111.44x = 42,173.56 × 9,642.32
  4. Step 4: Simplify right side
    28,111.44x = 406,650,961.06
  5. Step 5: Solve for x
    x = 406,650,961.06/28,111.44
  6. Step 6: Final answer
    x = 14,465.68

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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.