Home / 30,855.74-42,580.69-17,426.75

Finding the Fourth Proportional to 30,855.74, 42,580.69 and 17,426.75

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Solution

The fourth proportional to 30,855.74, 42,580.69 and 17,426.75 is: 24,048.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.74 : 42,580.69 = 17,426.75 : x
  2. Step 2: Convert to fraction form
    30,855.74/42,580.69 = 17,426.75/x
  3. Step 3: Cross multiply
    30,855.74x = 42,580.69 × 17,426.75
  4. Step 4: Simplify right side
    30,855.74x = 742,042,782.99
  5. Step 5: Solve for x
    x = 742,042,782.99/30,855.74
  6. Step 6: Final answer
    x = 24,048.78

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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.