Home / 28,019.18-42,022.83-9,294.86

Finding the Fourth Proportional to 28,019.18, 42,022.83 and 9,294.86

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Solution

The fourth proportional to 28,019.18, 42,022.83 and 9,294.86 is: 13,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.18 : 42,022.83 = 9,294.86 : x
  2. Step 2: Convert to fraction form
    28,019.18/42,022.83 = 9,294.86/x
  3. Step 3: Cross multiply
    28,019.18x = 42,022.83 × 9,294.86
  4. Step 4: Simplify right side
    28,019.18x = 390,596,321.65
  5. Step 5: Solve for x
    x = 390,596,321.65/28,019.18
  6. Step 6: Final answer
    x = 13,940.32

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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.