Home / 20,762.07-31,102.96-17,390.28

Finding the Fourth Proportional to 20,762.07, 31,102.96 and 17,390.28

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Solution

The fourth proportional to 20,762.07, 31,102.96 and 17,390.28 is: 26,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.07 : 31,102.96 = 17,390.28 : x
  2. Step 2: Convert to fraction form
    20,762.07/31,102.96 = 17,390.28/x
  3. Step 3: Cross multiply
    20,762.07x = 31,102.96 × 17,390.28
  4. Step 4: Simplify right side
    20,762.07x = 540,889,183.23
  5. Step 5: Solve for x
    x = 540,889,183.23/20,762.07
  6. Step 6: Final answer
    x = 26,051.79

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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.