Home / 30,426.89-41,990.27-17,679.92

Finding the Fourth Proportional to 30,426.89, 41,990.27 and 17,679.92

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Solution

The fourth proportional to 30,426.89, 41,990.27 and 17,679.92 is: 24,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.89 : 41,990.27 = 17,679.92 : x
  2. Step 2: Convert to fraction form
    30,426.89/41,990.27 = 17,679.92/x
  3. Step 3: Cross multiply
    30,426.89x = 41,990.27 × 17,679.92
  4. Step 4: Simplify right side
    30,426.89x = 742,384,316.03
  5. Step 5: Solve for x
    x = 742,384,316.03/30,426.89
  6. Step 6: Final answer
    x = 24,398.96

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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.