Home / 30,987.24-42,769.06-19,060.68

Finding the Fourth Proportional to 30,987.24, 42,769.06 and 19,060.68

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Solution

The fourth proportional to 30,987.24, 42,769.06 and 19,060.68 is: 26,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.24 : 42,769.06 = 19,060.68 : x
  2. Step 2: Convert to fraction form
    30,987.24/42,769.06 = 19,060.68/x
  3. Step 3: Cross multiply
    30,987.24x = 42,769.06 × 19,060.68
  4. Step 4: Simplify right side
    30,987.24x = 815,207,366.56
  5. Step 5: Solve for x
    x = 815,207,366.56/30,987.24
  6. Step 6: Final answer
    x = 26,307.84

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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.