Home / 19,325.28-28,993.70-11,111.52

Finding the Fourth Proportional to 19,325.28, 28,993.70 and 11,111.52

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Solution

The fourth proportional to 19,325.28, 28,993.70 and 11,111.52 is: 16,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.28 : 28,993.70 = 11,111.52 : x
  2. Step 2: Convert to fraction form
    19,325.28/28,993.70 = 11,111.52/x
  3. Step 3: Cross multiply
    19,325.28x = 28,993.70 × 11,111.52
  4. Step 4: Simplify right side
    19,325.28x = 322,164,077.42
  5. Step 5: Solve for x
    x = 322,164,077.42/19,325.28
  6. Step 6: Final answer
    x = 16,670.60

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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.