Home / 25,780.68-38,846.63-21,203.24

Finding the Fourth Proportional to 25,780.68, 38,846.63 and 21,203.24

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Solution

The fourth proportional to 25,780.68, 38,846.63 and 21,203.24 is: 31,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.68 : 38,846.63 = 21,203.24 : x
  2. Step 2: Convert to fraction form
    25,780.68/38,846.63 = 21,203.24/x
  3. Step 3: Cross multiply
    25,780.68x = 38,846.63 × 21,203.24
  4. Step 4: Simplify right side
    25,780.68x = 823,674,277.86
  5. Step 5: Solve for x
    x = 823,674,277.86/25,780.68
  6. Step 6: Final answer
    x = 31,949.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.