Home / 27,911.76-38,518.22-15,337.32

Finding the Fourth Proportional to 27,911.76, 38,518.22 and 15,337.32

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Solution

The fourth proportional to 27,911.76, 38,518.22 and 15,337.32 is: 21,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.76 : 38,518.22 = 15,337.32 : x
  2. Step 2: Convert to fraction form
    27,911.76/38,518.22 = 15,337.32/x
  3. Step 3: Cross multiply
    27,911.76x = 38,518.22 × 15,337.32
  4. Step 4: Simplify right side
    27,911.76x = 590,766,265.97
  5. Step 5: Solve for x
    x = 590,766,265.97/27,911.76
  6. Step 6: Final answer
    x = 21,165.50

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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.