Home / 28,345.80-42,523.20-9,627.60

Finding the Fourth Proportional to 28,345.80, 42,523.20 and 9,627.60

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Solution

The fourth proportional to 28,345.80, 42,523.20 and 9,627.60 is: 14,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.80 : 42,523.20 = 9,627.60 : x
  2. Step 2: Convert to fraction form
    28,345.80/42,523.20 = 9,627.60/x
  3. Step 3: Cross multiply
    28,345.80x = 42,523.20 × 9,627.60
  4. Step 4: Simplify right side
    28,345.80x = 409,396,360.32
  5. Step 5: Solve for x
    x = 409,396,360.32/28,345.80
  6. Step 6: Final answer
    x = 14,442.93

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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.