Home / 20,669.58-28,491.75-17,306.46

Finding the Fourth Proportional to 20,669.58, 28,491.75 and 17,306.46

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Solution

The fourth proportional to 20,669.58, 28,491.75 and 17,306.46 is: 23,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.58 : 28,491.75 = 17,306.46 : x
  2. Step 2: Convert to fraction form
    20,669.58/28,491.75 = 17,306.46/x
  3. Step 3: Cross multiply
    20,669.58x = 28,491.75 × 17,306.46
  4. Step 4: Simplify right side
    20,669.58x = 493,091,331.71
  5. Step 5: Solve for x
    x = 493,091,331.71/20,669.58
  6. Step 6: Final answer
    x = 23,855.90

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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.