Home / 20,313.63-28,087.29-17,822.88

Finding the Fourth Proportional to 20,313.63, 28,087.29 and 17,822.88

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Solution

The fourth proportional to 20,313.63, 28,087.29 and 17,822.88 is: 24,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.63 : 28,087.29 = 17,822.88 : x
  2. Step 2: Convert to fraction form
    20,313.63/28,087.29 = 17,822.88/x
  3. Step 3: Cross multiply
    20,313.63x = 28,087.29 × 17,822.88
  4. Step 4: Simplify right side
    20,313.63x = 500,596,399.20
  5. Step 5: Solve for x
    x = 500,596,399.20/20,313.63
  6. Step 6: Final answer
    x = 24,643.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.