Home / 20,679.84-28,525.38-18,033.60

Finding the Fourth Proportional to 20,679.84, 28,525.38 and 18,033.60

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Solution

The fourth proportional to 20,679.84, 28,525.38 and 18,033.60 is: 24,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679.84 : 28,525.38 = 18,033.60 : x
  2. Step 2: Convert to fraction form
    20,679.84/28,525.38 = 18,033.60/x
  3. Step 3: Cross multiply
    20,679.84x = 28,525.38 × 18,033.60
  4. Step 4: Simplify right side
    20,679.84x = 514,415,292.77
  5. Step 5: Solve for x
    x = 514,415,292.77/20,679.84
  6. Step 6: Final answer
    x = 24,875.21

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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.