Home / 30,828.04-42,542.84-17,399.86

Finding the Fourth Proportional to 30,828.04, 42,542.84 and 17,399.86

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Solution

The fourth proportional to 30,828.04, 42,542.84 and 17,399.86 is: 24,011.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828.04 : 42,542.84 = 17,399.86 : x
  2. Step 2: Convert to fraction form
    30,828.04/42,542.84 = 17,399.86/x
  3. Step 3: Cross multiply
    30,828.04x = 42,542.84 × 17,399.86
  4. Step 4: Simplify right side
    30,828.04x = 740,239,160.29
  5. Step 5: Solve for x
    x = 740,239,160.29/30,828.04
  6. Step 6: Final answer
    x = 24,011.88

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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.