Home / 30,828.09-42,542.91-17,399.91

Finding the Fourth Proportional to 30,828.09, 42,542.91 and 17,399.91

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Solution

The fourth proportional to 30,828.09, 42,542.91 and 17,399.91 is: 24,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828.09 : 42,542.91 = 17,399.91 : x
  2. Step 2: Convert to fraction form
    30,828.09/42,542.91 = 17,399.91/x
  3. Step 3: Cross multiply
    30,828.09x = 42,542.91 × 17,399.91
  4. Step 4: Simplify right side
    30,828.09x = 740,242,805.14
  5. Step 5: Solve for x
    x = 740,242,805.14/30,828.09
  6. Step 6: Final answer
    x = 24,011.96

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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.