Home / 29,731.80-41,051.40-19,139.88

Finding the Fourth Proportional to 29,731.80, 41,051.40 and 19,139.88

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Solution

The fourth proportional to 29,731.80, 41,051.40 and 19,139.88 is: 26,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,731.80 : 41,051.40 = 19,139.88 : x
  2. Step 2: Convert to fraction form
    29,731.80/41,051.40 = 19,139.88/x
  3. Step 3: Cross multiply
    29,731.80x = 41,051.40 × 19,139.88
  4. Step 4: Simplify right side
    29,731.80x = 785,718,941.61
  5. Step 5: Solve for x
    x = 785,718,941.61/29,731.80
  6. Step 6: Final answer
    x = 26,426.89

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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.