Home / 19,680.30-27,158.61-10,727.80

Finding the Fourth Proportional to 19,680.30, 27,158.61 and 10,727.80

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Solution

The fourth proportional to 19,680.30, 27,158.61 and 10,727.80 is: 14,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.30 : 27,158.61 = 10,727.80 : x
  2. Step 2: Convert to fraction form
    19,680.30/27,158.61 = 10,727.80/x
  3. Step 3: Cross multiply
    19,680.30x = 27,158.61 × 10,727.80
  4. Step 4: Simplify right side
    19,680.30x = 291,352,136.36
  5. Step 5: Solve for x
    x = 291,352,136.36/19,680.30
  6. Step 6: Final answer
    x = 14,804.25

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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.