Home / 31,599.03-43,615.35-19,655.22

Finding the Fourth Proportional to 31,599.03, 43,615.35 and 19,655.22

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Solution

The fourth proportional to 31,599.03, 43,615.35 and 19,655.22 is: 27,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,599.03 : 43,615.35 = 19,655.22 : x
  2. Step 2: Convert to fraction form
    31,599.03/43,615.35 = 19,655.22/x
  3. Step 3: Cross multiply
    31,599.03x = 43,615.35 × 19,655.22
  4. Step 4: Simplify right side
    31,599.03x = 857,269,299.63
  5. Step 5: Solve for x
    x = 857,269,299.63/31,599.03
  6. Step 6: Final answer
    x = 27,129.61

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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.