Home / 39,830.20-54,962.10-21,925.96

Finding the Fourth Proportional to 39,830.20, 54,962.10 and 21,925.96

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Solution

The fourth proportional to 39,830.20, 54,962.10 and 21,925.96 is: 30,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.20 : 54,962.10 = 21,925.96 : x
  2. Step 2: Convert to fraction form
    39,830.20/54,962.10 = 21,925.96/x
  3. Step 3: Cross multiply
    39,830.20x = 54,962.10 × 21,925.96
  4. Step 4: Simplify right side
    39,830.20x = 1,205,096,806.12
  5. Step 5: Solve for x
    x = 1,205,096,806.12/39,830.20
  6. Step 6: Final answer
    x = 30,255.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.