Home / 28,460.67-42,690.14-7,400.24

Finding the Fourth Proportional to 28,460.67, 42,690.14 and 7,400.24

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Solution

The fourth proportional to 28,460.67, 42,690.14 and 7,400.24 is: 11,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,460.67 : 42,690.14 = 7,400.24 : x
  2. Step 2: Convert to fraction form
    28,460.67/42,690.14 = 7,400.24/x
  3. Step 3: Cross multiply
    28,460.67x = 42,690.14 × 7,400.24
  4. Step 4: Simplify right side
    28,460.67x = 315,917,431.40
  5. Step 5: Solve for x
    x = 315,917,431.40/28,460.67
  6. Step 6: Final answer
    x = 11,100.14

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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.