Home / 19,362.12-28,988.64-12,324.84

Finding the Fourth Proportional to 19,362.12, 28,988.64 and 12,324.84

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Solution

The fourth proportional to 19,362.12, 28,988.64 and 12,324.84 is: 18,452.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,362.12 : 28,988.64 = 12,324.84 : x
  2. Step 2: Convert to fraction form
    19,362.12/28,988.64 = 12,324.84/x
  3. Step 3: Cross multiply
    19,362.12x = 28,988.64 × 12,324.84
  4. Step 4: Simplify right side
    19,362.12x = 357,280,349.82
  5. Step 5: Solve for x
    x = 357,280,349.82/19,362.12
  6. Step 6: Final answer
    x = 18,452.54

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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.