Home / 30,869.01-42,599.39-16,721.85

Finding the Fourth Proportional to 30,869.01, 42,599.39 and 16,721.85

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Solution

The fourth proportional to 30,869.01, 42,599.39 and 16,721.85 is: 23,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,869.01 : 42,599.39 = 16,721.85 : x
  2. Step 2: Convert to fraction form
    30,869.01/42,599.39 = 16,721.85/x
  3. Step 3: Cross multiply
    30,869.01x = 42,599.39 × 16,721.85
  4. Step 4: Simplify right side
    30,869.01x = 712,340,609.67
  5. Step 5: Solve for x
    x = 712,340,609.67/30,869.01
  6. Step 6: Final answer
    x = 23,076.24

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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.