Home / 30,815.74-42,527.63-17,382.09

Finding the Fourth Proportional to 30,815.74, 42,527.63 and 17,382.09

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Solution

The fourth proportional to 30,815.74, 42,527.63 and 17,382.09 is: 23,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.74 : 42,527.63 = 17,382.09 : x
  2. Step 2: Convert to fraction form
    30,815.74/42,527.63 = 17,382.09/x
  3. Step 3: Cross multiply
    30,815.74x = 42,527.63 × 17,382.09
  4. Step 4: Simplify right side
    30,815.74x = 739,219,295.08
  5. Step 5: Solve for x
    x = 739,219,295.08/30,815.74
  6. Step 6: Final answer
    x = 23,988.37

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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.