Home / 28,046.35-42,077.47-11,418.31

Finding the Fourth Proportional to 28,046.35, 42,077.47 and 11,418.31

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Solution

The fourth proportional to 28,046.35, 42,077.47 and 11,418.31 is: 17,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.35 : 42,077.47 = 11,418.31 : x
  2. Step 2: Convert to fraction form
    28,046.35/42,077.47 = 11,418.31/x
  3. Step 3: Cross multiply
    28,046.35x = 42,077.47 × 11,418.31
  4. Step 4: Simplify right side
    28,046.35x = 480,453,596.48
  5. Step 5: Solve for x
    x = 480,453,596.48/28,046.35
  6. Step 6: Final answer
    x = 17,130.70

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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.