Home / 27,956.68-38,570.78-18,988.64

Finding the Fourth Proportional to 27,956.68, 38,570.78 and 18,988.64

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Solution

The fourth proportional to 27,956.68, 38,570.78 and 18,988.64 is: 26,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.68 : 38,570.78 = 18,988.64 : x
  2. Step 2: Convert to fraction form
    27,956.68/38,570.78 = 18,988.64/x
  3. Step 3: Cross multiply
    27,956.68x = 38,570.78 × 18,988.64
  4. Step 4: Simplify right side
    27,956.68x = 732,406,655.94
  5. Step 5: Solve for x
    x = 732,406,655.94/27,956.68
  6. Step 6: Final answer
    x = 26,197.91

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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.