Home / 20,453.96-30,670.68-10,590.32

Finding the Fourth Proportional to 20,453.96, 30,670.68 and 10,590.32

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Solution

The fourth proportional to 20,453.96, 30,670.68 and 10,590.32 is: 15,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.96 : 30,670.68 = 10,590.32 : x
  2. Step 2: Convert to fraction form
    20,453.96/30,670.68 = 10,590.32/x
  3. Step 3: Cross multiply
    20,453.96x = 30,670.68 × 10,590.32
  4. Step 4: Simplify right side
    20,453.96x = 324,812,315.82
  5. Step 5: Solve for x
    x = 324,812,315.82/20,453.96
  6. Step 6: Final answer
    x = 15,880.17

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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.