Home / 30,422.18-41,980.50-16,809.63

Finding the Fourth Proportional to 30,422.18, 41,980.50 and 16,809.63

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Solution

The fourth proportional to 30,422.18, 41,980.50 and 16,809.63 is: 23,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.18 : 41,980.50 = 16,809.63 : x
  2. Step 2: Convert to fraction form
    30,422.18/41,980.50 = 16,809.63/x
  3. Step 3: Cross multiply
    30,422.18x = 41,980.50 × 16,809.63
  4. Step 4: Simplify right side
    30,422.18x = 705,676,672.22
  5. Step 5: Solve for x
    x = 705,676,672.22/30,422.18
  6. Step 6: Final answer
    x = 23,196.13

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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.