Home / 27,913.50-38,520.65-15,338.34

Finding the Fourth Proportional to 27,913.50, 38,520.65 and 15,338.34

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Solution

The fourth proportional to 27,913.50, 38,520.65 and 15,338.34 is: 21,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.50 : 38,520.65 = 15,338.34 : x
  2. Step 2: Convert to fraction form
    27,913.50/38,520.65 = 15,338.34/x
  3. Step 3: Cross multiply
    27,913.50x = 38,520.65 × 15,338.34
  4. Step 4: Simplify right side
    27,913.50x = 590,842,826.72
  5. Step 5: Solve for x
    x = 590,842,826.72/27,913.50
  6. Step 6: Final answer
    x = 21,166.92

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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.