Home / 21,783.72-32,620.14-15,214.52

Finding the Fourth Proportional to 21,783.72, 32,620.14 and 15,214.52

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Solution

The fourth proportional to 21,783.72, 32,620.14 and 15,214.52 is: 22,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783.72 : 32,620.14 = 15,214.52 : x
  2. Step 2: Convert to fraction form
    21,783.72/32,620.14 = 15,214.52/x
  3. Step 3: Cross multiply
    21,783.72x = 32,620.14 × 15,214.52
  4. Step 4: Simplify right side
    21,783.72x = 496,299,609.33
  5. Step 5: Solve for x
    x = 496,299,609.33/21,783.72
  6. Step 6: Final answer
    x = 22,783.05

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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.