Home / 31,430.88-43,374.60-18,002.52

Finding the Fourth Proportional to 31,430.88, 43,374.60 and 18,002.52

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Solution

The fourth proportional to 31,430.88, 43,374.60 and 18,002.52 is: 24,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.88 : 43,374.60 = 18,002.52 : x
  2. Step 2: Convert to fraction form
    31,430.88/43,374.60 = 18,002.52/x
  3. Step 3: Cross multiply
    31,430.88x = 43,374.60 × 18,002.52
  4. Step 4: Simplify right side
    31,430.88x = 780,852,103.99
  5. Step 5: Solve for x
    x = 780,852,103.99/31,430.88
  6. Step 6: Final answer
    x = 24,843.47

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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.