Home / 28,442.06-42,668.16-9,724.18

Finding the Fourth Proportional to 28,442.06, 42,668.16 and 9,724.18

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Solution

The fourth proportional to 28,442.06, 42,668.16 and 9,724.18 is: 14,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.06 : 42,668.16 = 9,724.18 : x
  2. Step 2: Convert to fraction form
    28,442.06/42,668.16 = 9,724.18/x
  3. Step 3: Cross multiply
    28,442.06x = 42,668.16 × 9,724.18
  4. Step 4: Simplify right side
    28,442.06x = 414,912,606.15
  5. Step 5: Solve for x
    x = 414,912,606.15/28,442.06
  6. Step 6: Final answer
    x = 14,587.99

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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.