Home / 20,966.23-31,449.67-5,383.51

Finding the Fourth Proportional to 20,966.23, 31,449.67 and 5,383.51

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Solution

The fourth proportional to 20,966.23, 31,449.67 and 5,383.51 is: 8,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.23 : 31,449.67 = 5,383.51 : x
  2. Step 2: Convert to fraction form
    20,966.23/31,449.67 = 5,383.51/x
  3. Step 3: Cross multiply
    20,966.23x = 31,449.67 × 5,383.51
  4. Step 4: Simplify right side
    20,966.23x = 169,309,586.02
  5. Step 5: Solve for x
    x = 169,309,586.02/20,966.23
  6. Step 6: Final answer
    x = 8,075.35

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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.