Home / 31,589.22-43,574.85-20,411.22

Finding the Fourth Proportional to 31,589.22, 43,574.85 and 20,411.22

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Solution

The fourth proportional to 31,589.22, 43,574.85 and 20,411.22 is: 28,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.22 : 43,574.85 = 20,411.22 : x
  2. Step 2: Convert to fraction form
    31,589.22/43,574.85 = 20,411.22/x
  3. Step 3: Cross multiply
    31,589.22x = 43,574.85 × 20,411.22
  4. Step 4: Simplify right side
    31,589.22x = 889,415,849.82
  5. Step 5: Solve for x
    x = 889,415,849.82/31,589.22
  6. Step 6: Final answer
    x = 28,155.68

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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.