Home / 27,118.72-37,397.54-21,148.21

Finding the Fourth Proportional to 27,118.72, 37,397.54 and 21,148.21

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Solution

The fourth proportional to 27,118.72, 37,397.54 and 21,148.21 is: 29,164.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.72 : 37,397.54 = 21,148.21 : x
  2. Step 2: Convert to fraction form
    27,118.72/37,397.54 = 21,148.21/x
  3. Step 3: Cross multiply
    27,118.72x = 37,397.54 × 21,148.21
  4. Step 4: Simplify right side
    27,118.72x = 790,891,029.40
  5. Step 5: Solve for x
    x = 790,891,029.40/27,118.72
  6. Step 6: Final answer
    x = 29,164.03

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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.