Home / 19,728.70-27,225.75-10,776.04

Finding the Fourth Proportional to 19,728.70, 27,225.75 and 10,776.04

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Solution

The fourth proportional to 19,728.70, 27,225.75 and 10,776.04 is: 14,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.70 : 27,225.75 = 10,776.04 : x
  2. Step 2: Convert to fraction form
    19,728.70/27,225.75 = 10,776.04/x
  3. Step 3: Cross multiply
    19,728.70x = 27,225.75 × 10,776.04
  4. Step 4: Simplify right side
    19,728.70x = 293,385,771.03
  5. Step 5: Solve for x
    x = 293,385,771.03/19,728.70
  6. Step 6: Final answer
    x = 14,871.01

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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.