Home / 19,931.96-27,506.04-10,979.45

Finding the Fourth Proportional to 19,931.96, 27,506.04 and 10,979.45

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Solution

The fourth proportional to 19,931.96, 27,506.04 and 10,979.45 is: 15,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.96 : 27,506.04 = 10,979.45 : x
  2. Step 2: Convert to fraction form
    19,931.96/27,506.04 = 10,979.45/x
  3. Step 3: Cross multiply
    19,931.96x = 27,506.04 × 10,979.45
  4. Step 4: Simplify right side
    19,931.96x = 302,001,190.88
  5. Step 5: Solve for x
    x = 302,001,190.88/19,931.96
  6. Step 6: Final answer
    x = 15,151.61

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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.