Home / 20,821.77-31,237.22-6,031.28

Finding the Fourth Proportional to 20,821.77, 31,237.22 and 6,031.28

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Solution

The fourth proportional to 20,821.77, 31,237.22 and 6,031.28 is: 9,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821.77 : 31,237.22 = 6,031.28 : x
  2. Step 2: Convert to fraction form
    20,821.77/31,237.22 = 6,031.28/x
  3. Step 3: Cross multiply
    20,821.77x = 31,237.22 × 6,031.28
  4. Step 4: Simplify right side
    20,821.77x = 188,400,513.41
  5. Step 5: Solve for x
    x = 188,400,513.41/20,821.77
  6. Step 6: Final answer
    x = 9,048.25

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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.