Home / 19,728.48-27,225.89-10,776.40

Finding the Fourth Proportional to 19,728.48, 27,225.89 and 10,776.40

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Solution

The fourth proportional to 19,728.48, 27,225.89 and 10,776.40 is: 14,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.48 : 27,225.89 = 10,776.40 : x
  2. Step 2: Convert to fraction form
    19,728.48/27,225.89 = 10,776.40/x
  3. Step 3: Cross multiply
    19,728.48x = 27,225.89 × 10,776.40
  4. Step 4: Simplify right side
    19,728.48x = 293,397,081.00
  5. Step 5: Solve for x
    x = 293,397,081.00/19,728.48
  6. Step 6: Final answer
    x = 14,871.75

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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.