Home / 30,976.79-42,750.09-17,548.16

Finding the Fourth Proportional to 30,976.79, 42,750.09 and 17,548.16

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Solution

The fourth proportional to 30,976.79, 42,750.09 and 17,548.16 is: 24,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.79 : 42,750.09 = 17,548.16 : x
  2. Step 2: Convert to fraction form
    30,976.79/42,750.09 = 17,548.16/x
  3. Step 3: Cross multiply
    30,976.79x = 42,750.09 × 17,548.16
  4. Step 4: Simplify right side
    30,976.79x = 750,185,139.78
  5. Step 5: Solve for x
    x = 750,185,139.78/30,976.79
  6. Step 6: Final answer
    x = 24,217.65

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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.