Home / 28,442.61-42,670.62-9,722.84

Finding the Fourth Proportional to 28,442.61, 42,670.62 and 9,722.84

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Solution

The fourth proportional to 28,442.61, 42,670.62 and 9,722.84 is: 14,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.61 : 42,670.62 = 9,722.84 : x
  2. Step 2: Convert to fraction form
    28,442.61/42,670.62 = 9,722.84/x
  3. Step 3: Cross multiply
    28,442.61x = 42,670.62 × 9,722.84
  4. Step 4: Simplify right side
    28,442.61x = 414,879,397.61
  5. Step 5: Solve for x
    x = 414,879,397.61/28,442.61
  6. Step 6: Final answer
    x = 14,586.54

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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.