Home / 20,061.92-27,698.90-12,511.31

Finding the Fourth Proportional to 20,061.92, 27,698.90 and 12,511.31

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Solution

The fourth proportional to 20,061.92, 27,698.90 and 12,511.31 is: 17,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.92 : 27,698.90 = 12,511.31 : x
  2. Step 2: Convert to fraction form
    20,061.92/27,698.90 = 12,511.31/x
  3. Step 3: Cross multiply
    20,061.92x = 27,698.90 × 12,511.31
  4. Step 4: Simplify right side
    20,061.92x = 346,549,323.51
  5. Step 5: Solve for x
    x = 346,549,323.51/20,061.92
  6. Step 6: Final answer
    x = 17,273.99

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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.