Home / 20,801.46-28,706.23-11,370.02

Finding the Fourth Proportional to 20,801.46, 28,706.23 and 11,370.02

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Solution

The fourth proportional to 20,801.46, 28,706.23 and 11,370.02 is: 15,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.46 : 28,706.23 = 11,370.02 : x
  2. Step 2: Convert to fraction form
    20,801.46/28,706.23 = 11,370.02/x
  3. Step 3: Cross multiply
    20,801.46x = 28,706.23 × 11,370.02
  4. Step 4: Simplify right side
    20,801.46x = 326,390,352.37
  5. Step 5: Solve for x
    x = 326,390,352.37/20,801.46
  6. Step 6: Final answer
    x = 15,690.75

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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.