Home / 21,449.20-32,195.40-10,364.80

Finding the Fourth Proportional to 21,449.20, 32,195.40 and 10,364.80

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Solution

The fourth proportional to 21,449.20, 32,195.40 and 10,364.80 is: 15,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.20 : 32,195.40 = 10,364.80 : x
  2. Step 2: Convert to fraction form
    21,449.20/32,195.40 = 10,364.80/x
  3. Step 3: Cross multiply
    21,449.20x = 32,195.40 × 10,364.80
  4. Step 4: Simplify right side
    21,449.20x = 333,698,881.92
  5. Step 5: Solve for x
    x = 333,698,881.92/21,449.20
  6. Step 6: Final answer
    x = 15,557.64

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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.