Home / 20,018.72-27,594.02-15,763.04

Finding the Fourth Proportional to 20,018.72, 27,594.02 and 15,763.04

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Solution

The fourth proportional to 20,018.72, 27,594.02 and 15,763.04 is: 21,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.72 : 27,594.02 = 15,763.04 : x
  2. Step 2: Convert to fraction form
    20,018.72/27,594.02 = 15,763.04/x
  3. Step 3: Cross multiply
    20,018.72x = 27,594.02 × 15,763.04
  4. Step 4: Simplify right side
    20,018.72x = 434,965,641.02
  5. Step 5: Solve for x
    x = 434,965,641.02/20,018.72
  6. Step 6: Final answer
    x = 21,727.94

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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.