Home / 22,031.57-30,403.59-13,080.86

Finding the Fourth Proportional to 22,031.57, 30,403.59 and 13,080.86

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Solution

The fourth proportional to 22,031.57, 30,403.59 and 13,080.86 is: 18,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.57 : 30,403.59 = 13,080.86 : x
  2. Step 2: Convert to fraction form
    22,031.57/30,403.59 = 13,080.86/x
  3. Step 3: Cross multiply
    22,031.57x = 30,403.59 × 13,080.86
  4. Step 4: Simplify right side
    22,031.57x = 397,704,952.27
  5. Step 5: Solve for x
    x = 397,704,952.27/22,031.57
  6. Step 6: Final answer
    x = 18,051.60

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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.