Home / 30,826.96-42,541.14-16,679.80

Finding the Fourth Proportional to 30,826.96, 42,541.14 and 16,679.80

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Solution

The fourth proportional to 30,826.96, 42,541.14 and 16,679.80 is: 23,018.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,826.96 : 42,541.14 = 16,679.80 : x
  2. Step 2: Convert to fraction form
    30,826.96/42,541.14 = 16,679.80/x
  3. Step 3: Cross multiply
    30,826.96x = 42,541.14 × 16,679.80
  4. Step 4: Simplify right side
    30,826.96x = 709,577,706.97
  5. Step 5: Solve for x
    x = 709,577,706.97/30,826.96
  6. Step 6: Final answer
    x = 23,018.09

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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.