Home / 21,323.36-31,982.58-5,739.76

Finding the Fourth Proportional to 21,323.36, 31,982.58 and 5,739.76

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Solution

The fourth proportional to 21,323.36, 31,982.58 and 5,739.76 is: 8,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.36 : 31,982.58 = 5,739.76 : x
  2. Step 2: Convert to fraction form
    21,323.36/31,982.58 = 5,739.76/x
  3. Step 3: Cross multiply
    21,323.36x = 31,982.58 × 5,739.76
  4. Step 4: Simplify right side
    21,323.36x = 183,572,333.38
  5. Step 5: Solve for x
    x = 183,572,333.38/21,323.36
  6. Step 6: Final answer
    x = 8,608.98

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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.