Home / 21,920.34-32,885.37-6,336.78

Finding the Fourth Proportional to 21,920.34, 32,885.37 and 6,336.78

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Solution

The fourth proportional to 21,920.34, 32,885.37 and 6,336.78 is: 9,506.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920.34 : 32,885.37 = 6,336.78 : x
  2. Step 2: Convert to fraction form
    21,920.34/32,885.37 = 6,336.78/x
  3. Step 3: Cross multiply
    21,920.34x = 32,885.37 × 6,336.78
  4. Step 4: Simplify right side
    21,920.34x = 208,387,354.91
  5. Step 5: Solve for x
    x = 208,387,354.91/21,920.34
  6. Step 6: Final answer
    x = 9,506.57

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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.