Home / 27,108.17-37,445.01-20,812.54

Finding the Fourth Proportional to 27,108.17, 37,445.01 and 20,812.54

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Solution

The fourth proportional to 27,108.17, 37,445.01 and 20,812.54 is: 28,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,108.17 : 37,445.01 = 20,812.54 : x
  2. Step 2: Convert to fraction form
    27,108.17/37,445.01 = 20,812.54/x
  3. Step 3: Cross multiply
    27,108.17x = 37,445.01 × 20,812.54
  4. Step 4: Simplify right side
    27,108.17x = 779,325,768.43
  5. Step 5: Solve for x
    x = 779,325,768.43/27,108.17
  6. Step 6: Final answer
    x = 28,748.74

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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.