Home / 31,421.03-43,360.71-23,390.59

Finding the Fourth Proportional to 31,421.03, 43,360.71 and 23,390.59

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Solution

The fourth proportional to 31,421.03, 43,360.71 and 23,390.59 is: 32,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.03 : 43,360.71 = 23,390.59 : x
  2. Step 2: Convert to fraction form
    31,421.03/43,360.71 = 23,390.59/x
  3. Step 3: Cross multiply
    31,421.03x = 43,360.71 × 23,390.59
  4. Step 4: Simplify right side
    31,421.03x = 1,014,232,589.72
  5. Step 5: Solve for x
    x = 1,014,232,589.72/31,421.03
  6. Step 6: Final answer
    x = 32,278.78

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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.