Home / 30,118.50-41,562.90-16,689.72

Finding the Fourth Proportional to 30,118.50, 41,562.90 and 16,689.72

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Solution

The fourth proportional to 30,118.50, 41,562.90 and 16,689.72 is: 23,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.50 : 41,562.90 = 16,689.72 : x
  2. Step 2: Convert to fraction form
    30,118.50/41,562.90 = 16,689.72/x
  3. Step 3: Cross multiply
    30,118.50x = 41,562.90 × 16,689.72
  4. Step 4: Simplify right side
    30,118.50x = 693,673,163.39
  5. Step 5: Solve for x
    x = 693,673,163.39/30,118.50
  6. Step 6: Final answer
    x = 23,031.46

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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.