Home / 20,537.56-28,341.93-11,585.44

Finding the Fourth Proportional to 20,537.56, 28,341.93 and 11,585.44

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Solution

The fourth proportional to 20,537.56, 28,341.93 and 11,585.44 is: 15,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.56 : 28,341.93 = 11,585.44 : x
  2. Step 2: Convert to fraction form
    20,537.56/28,341.93 = 11,585.44/x
  3. Step 3: Cross multiply
    20,537.56x = 28,341.93 × 11,585.44
  4. Step 4: Simplify right side
    20,537.56x = 328,353,729.50
  5. Step 5: Solve for x
    x = 328,353,729.50/20,537.56
  6. Step 6: Final answer
    x = 15,987.96

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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.