Home / 31,200.50-43,055.88-18,454.34

Finding the Fourth Proportional to 31,200.50, 43,055.88 and 18,454.34

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Solution

The fourth proportional to 31,200.50, 43,055.88 and 18,454.34 is: 25,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,200.50 : 43,055.88 = 18,454.34 : x
  2. Step 2: Convert to fraction form
    31,200.50/43,055.88 = 18,454.34/x
  3. Step 3: Cross multiply
    31,200.50x = 43,055.88 × 18,454.34
  4. Step 4: Simplify right side
    31,200.50x = 794,567,848.52
  5. Step 5: Solve for x
    x = 794,567,848.52/31,200.50
  6. Step 6: Final answer
    x = 25,466.51

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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.