Home / 30,986.49-42,756.08-17,554.97

Finding the Fourth Proportional to 30,986.49, 42,756.08 and 17,554.97

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Solution

The fourth proportional to 30,986.49, 42,756.08 and 17,554.97 is: 24,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.49 : 42,756.08 = 17,554.97 : x
  2. Step 2: Convert to fraction form
    30,986.49/42,756.08 = 17,554.97/x
  3. Step 3: Cross multiply
    30,986.49x = 42,756.08 × 17,554.97
  4. Step 4: Simplify right side
    30,986.49x = 750,581,720.83
  5. Step 5: Solve for x
    x = 750,581,720.83/30,986.49
  6. Step 6: Final answer
    x = 24,222.87

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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.