Home / 28,484.03-42,741.36-11,855.54

Finding the Fourth Proportional to 28,484.03, 42,741.36 and 11,855.54

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Solution

The fourth proportional to 28,484.03, 42,741.36 and 11,855.54 is: 17,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.03 : 42,741.36 = 11,855.54 : x
  2. Step 2: Convert to fraction form
    28,484.03/42,741.36 = 11,855.54/x
  3. Step 3: Cross multiply
    28,484.03x = 42,741.36 × 11,855.54
  4. Step 4: Simplify right side
    28,484.03x = 506,721,689.43
  5. Step 5: Solve for x
    x = 506,721,689.43/28,484.03
  6. Step 6: Final answer
    x = 17,789.68

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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.