Home / 21,424.28-32,133.15-13,101.56

Finding the Fourth Proportional to 21,424.28, 32,133.15 and 13,101.56

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Solution

The fourth proportional to 21,424.28, 32,133.15 and 13,101.56 is: 19,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.28 : 32,133.15 = 13,101.56 : x
  2. Step 2: Convert to fraction form
    21,424.28/32,133.15 = 13,101.56/x
  3. Step 3: Cross multiply
    21,424.28x = 32,133.15 × 13,101.56
  4. Step 4: Simplify right side
    21,424.28x = 420,994,392.71
  5. Step 5: Solve for x
    x = 420,994,392.71/21,424.28
  6. Step 6: Final answer
    x = 19,650.34

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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.