Home / 20,484.54-28,271.25-11,532.42

Finding the Fourth Proportional to 20,484.54, 28,271.25 and 11,532.42

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Solution

The fourth proportional to 20,484.54, 28,271.25 and 11,532.42 is: 15,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.54 : 28,271.25 = 11,532.42 : x
  2. Step 2: Convert to fraction form
    20,484.54/28,271.25 = 11,532.42/x
  3. Step 3: Cross multiply
    20,484.54x = 28,271.25 × 11,532.42
  4. Step 4: Simplify right side
    20,484.54x = 326,035,928.93
  5. Step 5: Solve for x
    x = 326,035,928.93/20,484.54
  6. Step 6: Final answer
    x = 15,916.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.