Home / 21,323.44-31,986.78-5,741.20

Finding the Fourth Proportional to 21,323.44, 31,986.78 and 5,741.20

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Solution

The fourth proportional to 21,323.44, 31,986.78 and 5,741.20 is: 8,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.44 : 31,986.78 = 5,741.20 : x
  2. Step 2: Convert to fraction form
    21,323.44/31,986.78 = 5,741.20/x
  3. Step 3: Cross multiply
    21,323.44x = 31,986.78 × 5,741.20
  4. Step 4: Simplify right side
    21,323.44x = 183,642,501.34
  5. Step 5: Solve for x
    x = 183,642,501.34/21,323.44
  6. Step 6: Final answer
    x = 8,612.24

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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.