Home / 20,973.90-31,458.24-5,981.34

Finding the Fourth Proportional to 20,973.90, 31,458.24 and 5,981.34

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Solution

The fourth proportional to 20,973.90, 31,458.24 and 5,981.34 is: 8,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.90 : 31,458.24 = 5,981.34 : x
  2. Step 2: Convert to fraction form
    20,973.90/31,458.24 = 5,981.34/x
  3. Step 3: Cross multiply
    20,973.90x = 31,458.24 × 5,981.34
  4. Step 4: Simplify right side
    20,973.90x = 188,162,429.24
  5. Step 5: Solve for x
    x = 188,162,429.24/20,973.90
  6. Step 6: Final answer
    x = 8,971.27

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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.