Home / 30,675.06-42,329.16-17,243.76

Finding the Fourth Proportional to 30,675.06, 42,329.16 and 17,243.76

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Solution

The fourth proportional to 30,675.06, 42,329.16 and 17,243.76 is: 23,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.06 : 42,329.16 = 17,243.76 : x
  2. Step 2: Convert to fraction form
    30,675.06/42,329.16 = 17,243.76/x
  3. Step 3: Cross multiply
    30,675.06x = 42,329.16 × 17,243.76
  4. Step 4: Simplify right side
    30,675.06x = 729,913,876.04
  5. Step 5: Solve for x
    x = 729,913,876.04/30,675.06
  6. Step 6: Final answer
    x = 23,795.03

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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.