Home / 31,493.34-43,458.93-18,747.45

Finding the Fourth Proportional to 31,493.34, 43,458.93 and 18,747.45

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Solution

The fourth proportional to 31,493.34, 43,458.93 and 18,747.45 is: 25,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,493.34 : 43,458.93 = 18,747.45 : x
  2. Step 2: Convert to fraction form
    31,493.34/43,458.93 = 18,747.45/x
  3. Step 3: Cross multiply
    31,493.34x = 43,458.93 × 18,747.45
  4. Step 4: Simplify right side
    31,493.34x = 814,744,117.23
  5. Step 5: Solve for x
    x = 814,744,117.23/31,493.34
  6. Step 6: Final answer
    x = 25,870.36

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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.