Home / 30,489.71-42,073.83-17,058.65

Finding the Fourth Proportional to 30,489.71, 42,073.83 and 17,058.65

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Solution

The fourth proportional to 30,489.71, 42,073.83 and 17,058.65 is: 23,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.71 : 42,073.83 = 17,058.65 : x
  2. Step 2: Convert to fraction form
    30,489.71/42,073.83 = 17,058.65/x
  3. Step 3: Cross multiply
    30,489.71x = 42,073.83 × 17,058.65
  4. Step 4: Simplify right side
    30,489.71x = 717,722,529.76
  5. Step 5: Solve for x
    x = 717,722,529.76/30,489.71
  6. Step 6: Final answer
    x = 23,539.83

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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.