Home / 27,135.83-37,446.35-15,805.68

Finding the Fourth Proportional to 27,135.83, 37,446.35 and 15,805.68

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Solution

The fourth proportional to 27,135.83, 37,446.35 and 15,805.68 is: 21,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.83 : 37,446.35 = 15,805.68 : x
  2. Step 2: Convert to fraction form
    27,135.83/37,446.35 = 15,805.68/x
  3. Step 3: Cross multiply
    27,135.83x = 37,446.35 × 15,805.68
  4. Step 4: Simplify right side
    27,135.83x = 591,864,946.24
  5. Step 5: Solve for x
    x = 591,864,946.24/27,135.83
  6. Step 6: Final answer
    x = 21,811.20

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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.