Home / 21,630.45-32,445.68-9,148.49

Finding the Fourth Proportional to 21,630.45, 32,445.68 and 9,148.49

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Solution

The fourth proportional to 21,630.45, 32,445.68 and 9,148.49 is: 13,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.45 : 32,445.68 = 9,148.49 : x
  2. Step 2: Convert to fraction form
    21,630.45/32,445.68 = 9,148.49/x
  3. Step 3: Cross multiply
    21,630.45x = 32,445.68 × 9,148.49
  4. Step 4: Simplify right side
    21,630.45x = 296,828,771.05
  5. Step 5: Solve for x
    x = 296,828,771.05/21,630.45
  6. Step 6: Final answer
    x = 13,722.73

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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.