Home / 30,308.61-41,826.90-17,390.12

Finding the Fourth Proportional to 30,308.61, 41,826.90 and 17,390.12

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Solution

The fourth proportional to 30,308.61, 41,826.90 and 17,390.12 is: 23,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.61 : 41,826.90 = 17,390.12 : x
  2. Step 2: Convert to fraction form
    30,308.61/41,826.90 = 17,390.12/x
  3. Step 3: Cross multiply
    30,308.61x = 41,826.90 × 17,390.12
  4. Step 4: Simplify right side
    30,308.61x = 727,374,810.23
  5. Step 5: Solve for x
    x = 727,374,810.23/30,308.61
  6. Step 6: Final answer
    x = 23,998.95

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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.