Home / 27,238.85-37,587.89-15,138.59

Finding the Fourth Proportional to 27,238.85, 37,587.89 and 15,138.59

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Solution

The fourth proportional to 27,238.85, 37,587.89 and 15,138.59 is: 20,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,238.85 : 37,587.89 = 15,138.59 : x
  2. Step 2: Convert to fraction form
    27,238.85/37,587.89 = 15,138.59/x
  3. Step 3: Cross multiply
    27,238.85x = 37,587.89 × 15,138.59
  4. Step 4: Simplify right side
    27,238.85x = 569,027,392.04
  5. Step 5: Solve for x
    x = 569,027,392.04/27,238.85
  6. Step 6: Final answer
    x = 20,890.29

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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.