Home / 19,680.41-27,158.16-10,727.72

Finding the Fourth Proportional to 19,680.41, 27,158.16 and 10,727.72

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Solution

The fourth proportional to 19,680.41, 27,158.16 and 10,727.72 is: 14,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.41 : 27,158.16 = 10,727.72 : x
  2. Step 2: Convert to fraction form
    19,680.41/27,158.16 = 10,727.72/x
  3. Step 3: Cross multiply
    19,680.41x = 27,158.16 × 10,727.72
  4. Step 4: Simplify right side
    19,680.41x = 291,345,000.40
  5. Step 5: Solve for x
    x = 291,345,000.40/19,680.41
  6. Step 6: Final answer
    x = 14,803.81

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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.