Home / 20,248.48-30,370.31-5,458.56

Finding the Fourth Proportional to 20,248.48, 30,370.31 and 5,458.56

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Solution

The fourth proportional to 20,248.48, 30,370.31 and 5,458.56 is: 8,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.48 : 30,370.31 = 5,458.56 : x
  2. Step 2: Convert to fraction form
    20,248.48/30,370.31 = 5,458.56/x
  3. Step 3: Cross multiply
    20,248.48x = 30,370.31 × 5,458.56
  4. Step 4: Simplify right side
    20,248.48x = 165,778,038.64
  5. Step 5: Solve for x
    x = 165,778,038.64/20,248.48
  6. Step 6: Final answer
    x = 8,187.18

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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.