Home / 29,989.80-41,386.10-16,561.62

Finding the Fourth Proportional to 29,989.80, 41,386.10 and 16,561.62

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Solution

The fourth proportional to 29,989.80, 41,386.10 and 16,561.62 is: 22,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,989.80 : 41,386.10 = 16,561.62 : x
  2. Step 2: Convert to fraction form
    29,989.80/41,386.10 = 16,561.62/x
  3. Step 3: Cross multiply
    29,989.80x = 41,386.10 × 16,561.62
  4. Step 4: Simplify right side
    29,989.80x = 685,420,778.67
  5. Step 5: Solve for x
    x = 685,420,778.67/29,989.80
  6. Step 6: Final answer
    x = 22,855.13

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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.