Home / 28,130.53-42,205.03-11,504.54

Finding the Fourth Proportional to 28,130.53, 42,205.03 and 11,504.54

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Solution

The fourth proportional to 28,130.53, 42,205.03 and 11,504.54 is: 17,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.53 : 42,205.03 = 11,504.54 : x
  2. Step 2: Convert to fraction form
    28,130.53/42,205.03 = 11,504.54/x
  3. Step 3: Cross multiply
    28,130.53x = 42,205.03 × 11,504.54
  4. Step 4: Simplify right side
    28,130.53x = 485,549,398.31
  5. Step 5: Solve for x
    x = 485,549,398.31/28,130.53
  6. Step 6: Final answer
    x = 17,260.59

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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.