Home / 28,055.52-42,083.55-7,279.02

Finding the Fourth Proportional to 28,055.52, 42,083.55 and 7,279.02

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Solution

The fourth proportional to 28,055.52, 42,083.55 and 7,279.02 is: 10,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.52 : 42,083.55 = 7,279.02 : x
  2. Step 2: Convert to fraction form
    28,055.52/42,083.55 = 7,279.02/x
  3. Step 3: Cross multiply
    28,055.52x = 42,083.55 × 7,279.02
  4. Step 4: Simplify right side
    28,055.52x = 306,327,002.12
  5. Step 5: Solve for x
    x = 306,327,002.12/28,055.52
  6. Step 6: Final answer
    x = 10,918.60

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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.