Home / 21,855.42-32,783.13-10,154.97

Finding the Fourth Proportional to 21,855.42, 32,783.13 and 10,154.97

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Solution

The fourth proportional to 21,855.42, 32,783.13 and 10,154.97 is: 15,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855.42 : 32,783.13 = 10,154.97 : x
  2. Step 2: Convert to fraction form
    21,855.42/32,783.13 = 10,154.97/x
  3. Step 3: Cross multiply
    21,855.42x = 32,783.13 × 10,154.97
  4. Step 4: Simplify right side
    21,855.42x = 332,911,701.66
  5. Step 5: Solve for x
    x = 332,911,701.66/21,855.42
  6. Step 6: Final answer
    x = 15,232.46

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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.