Home / 30,812.01-42,519.89-17,382.92

Finding the Fourth Proportional to 30,812.01, 42,519.89 and 17,382.92

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Solution

The fourth proportional to 30,812.01, 42,519.89 and 17,382.92 is: 23,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.01 : 42,519.89 = 17,382.92 : x
  2. Step 2: Convert to fraction form
    30,812.01/42,519.89 = 17,382.92/x
  3. Step 3: Cross multiply
    30,812.01x = 42,519.89 × 17,382.92
  4. Step 4: Simplify right side
    30,812.01x = 739,119,546.76
  5. Step 5: Solve for x
    x = 739,119,546.76/30,812.01
  6. Step 6: Final answer
    x = 23,988.03

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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.