Home / 21,315.90-31,973.79-5,733.54

Finding the Fourth Proportional to 21,315.90, 31,973.79 and 5,733.54

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Solution

The fourth proportional to 21,315.90, 31,973.79 and 5,733.54 is: 8,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315.90 : 31,973.79 = 5,733.54 : x
  2. Step 2: Convert to fraction form
    21,315.90/31,973.79 = 5,733.54/x
  3. Step 3: Cross multiply
    21,315.90x = 31,973.79 × 5,733.54
  4. Step 4: Simplify right side
    21,315.90x = 183,323,003.92
  5. Step 5: Solve for x
    x = 183,323,003.92/21,315.90
  6. Step 6: Final answer
    x = 8,600.29

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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.