Home / 28,081.48-38,752.46-15,506.28

Finding the Fourth Proportional to 28,081.48, 38,752.46 and 15,506.28

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Solution

The fourth proportional to 28,081.48, 38,752.46 and 15,506.28 is: 21,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.48 : 38,752.46 = 15,506.28 : x
  2. Step 2: Convert to fraction form
    28,081.48/38,752.46 = 15,506.28/x
  3. Step 3: Cross multiply
    28,081.48x = 38,752.46 × 15,506.28
  4. Step 4: Simplify right side
    28,081.48x = 600,906,495.45
  5. Step 5: Solve for x
    x = 600,906,495.45/28,081.48
  6. Step 6: Final answer
    x = 21,398.68

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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.