Home / 30,426.76-41,988.92-17,178.76

Finding the Fourth Proportional to 30,426.76, 41,988.92 and 17,178.76

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Solution

The fourth proportional to 30,426.76, 41,988.92 and 17,178.76 is: 23,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.76 : 41,988.92 = 17,178.76 : x
  2. Step 2: Convert to fraction form
    30,426.76/41,988.92 = 17,178.76/x
  3. Step 3: Cross multiply
    30,426.76x = 41,988.92 × 17,178.76
  4. Step 4: Simplify right side
    30,426.76x = 721,317,579.34
  5. Step 5: Solve for x
    x = 721,317,579.34/30,426.76
  6. Step 6: Final answer
    x = 23,706.68

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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.