Home / 13,585.16-20,375.40-3,590.01

Finding the Fourth Proportional to 13,585.16, 20,375.40 and 3,590.01

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Solution

The fourth proportional to 13,585.16, 20,375.40 and 3,590.01 is: 5,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.16 : 20,375.40 = 3,590.01 : x
  2. Step 2: Convert to fraction form
    13,585.16/20,375.40 = 3,590.01/x
  3. Step 3: Cross multiply
    13,585.16x = 20,375.40 × 3,590.01
  4. Step 4: Simplify right side
    13,585.16x = 73,147,889.75
  5. Step 5: Solve for x
    x = 73,147,889.75/13,585.16
  6. Step 6: Final answer
    x = 5,384.40

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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.