Home / 19,632.50-29,448.75-5,781.30

Finding the Fourth Proportional to 19,632.50, 29,448.75 and 5,781.30

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Solution

The fourth proportional to 19,632.50, 29,448.75 and 5,781.30 is: 8,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,632.50 : 29,448.75 = 5,781.30 : x
  2. Step 2: Convert to fraction form
    19,632.50/29,448.75 = 5,781.30/x
  3. Step 3: Cross multiply
    19,632.50x = 29,448.75 × 5,781.30
  4. Step 4: Simplify right side
    19,632.50x = 170,252,058.38
  5. Step 5: Solve for x
    x = 170,252,058.38/19,632.50
  6. Step 6: Final answer
    x = 8,671.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.