Home / 28,148.31-38,765.79-23,389.56

Finding the Fourth Proportional to 28,148.31, 38,765.79 and 23,389.56

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Solution

The fourth proportional to 28,148.31, 38,765.79 and 23,389.56 is: 32,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.31 : 38,765.79 = 23,389.56 : x
  2. Step 2: Convert to fraction form
    28,148.31/38,765.79 = 23,389.56/x
  3. Step 3: Cross multiply
    28,148.31x = 38,765.79 × 23,389.56
  4. Step 4: Simplify right side
    28,148.31x = 906,714,771.15
  5. Step 5: Solve for x
    x = 906,714,771.15/28,148.31
  6. Step 6: Final answer
    x = 32,212.05

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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.