Home / 19,728.32-27,225.29-10,776.08

Finding the Fourth Proportional to 19,728.32, 27,225.29 and 10,776.08

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Solution

The fourth proportional to 19,728.32, 27,225.29 and 10,776.08 is: 14,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.32 : 27,225.29 = 10,776.08 : x
  2. Step 2: Convert to fraction form
    19,728.32/27,225.29 = 10,776.08/x
  3. Step 3: Cross multiply
    19,728.32x = 27,225.29 × 10,776.08
  4. Step 4: Simplify right side
    19,728.32x = 293,381,713.06
  5. Step 5: Solve for x
    x = 293,381,713.06/19,728.32
  6. Step 6: Final answer
    x = 14,871.10

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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.