Home / 27,338.20-37,730.30-15,403.84

Finding the Fourth Proportional to 27,338.20, 37,730.30 and 15,403.84

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Solution

The fourth proportional to 27,338.20, 37,730.30 and 15,403.84 is: 21,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,338.20 : 37,730.30 = 15,403.84 : x
  2. Step 2: Convert to fraction form
    27,338.20/37,730.30 = 15,403.84/x
  3. Step 3: Cross multiply
    27,338.20x = 37,730.30 × 15,403.84
  4. Step 4: Simplify right side
    27,338.20x = 581,191,504.35
  5. Step 5: Solve for x
    x = 581,191,504.35/27,338.20
  6. Step 6: Final answer
    x = 21,259.32

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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.