Home / 25,749.60-38,557.80-21,579.60

Finding the Fourth Proportional to 25,749.60, 38,557.80 and 21,579.60

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Solution

The fourth proportional to 25,749.60, 38,557.80 and 21,579.60 is: 32,313.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,749.60 : 38,557.80 = 21,579.60 : x
  2. Step 2: Convert to fraction form
    25,749.60/38,557.80 = 21,579.60/x
  3. Step 3: Cross multiply
    25,749.60x = 38,557.80 × 21,579.60
  4. Step 4: Simplify right side
    25,749.60x = 832,061,900.88
  5. Step 5: Solve for x
    x = 832,061,900.88/25,749.60
  6. Step 6: Final answer
    x = 32,313.59

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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.