Home / 19,276.38-28,930.01-18,661.30

Finding the Fourth Proportional to 19,276.38, 28,930.01 and 18,661.30

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Solution

The fourth proportional to 19,276.38, 28,930.01 and 18,661.30 is: 28,006.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.38 : 28,930.01 = 18,661.30 : x
  2. Step 2: Convert to fraction form
    19,276.38/28,930.01 = 18,661.30/x
  3. Step 3: Cross multiply
    19,276.38x = 28,930.01 × 18,661.30
  4. Step 4: Simplify right side
    19,276.38x = 539,871,429.98
  5. Step 5: Solve for x
    x = 539,871,429.98/19,276.38
  6. Step 6: Final answer
    x = 28,006.89

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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.