Home / 27,646.99-38,122.72-18,678.94

Finding the Fourth Proportional to 27,646.99, 38,122.72 and 18,678.94

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Solution

The fourth proportional to 27,646.99, 38,122.72 and 18,678.94 is: 25,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.99 : 38,122.72 = 18,678.94 : x
  2. Step 2: Convert to fraction form
    27,646.99/38,122.72 = 18,678.94/x
  3. Step 3: Cross multiply
    27,646.99x = 38,122.72 × 18,678.94
  4. Step 4: Simplify right side
    27,646.99x = 712,091,857.51
  5. Step 5: Solve for x
    x = 712,091,857.51/27,646.99
  6. Step 6: Final answer
    x = 25,756.58

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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.