Home / 27,913.15-38,519.71-15,337.63

Finding the Fourth Proportional to 27,913.15, 38,519.71 and 15,337.63

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Solution

The fourth proportional to 27,913.15, 38,519.71 and 15,337.63 is: 21,165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.15 : 38,519.71 = 15,337.63 : x
  2. Step 2: Convert to fraction form
    27,913.15/38,519.71 = 15,337.63/x
  3. Step 3: Cross multiply
    27,913.15x = 38,519.71 × 15,337.63
  4. Step 4: Simplify right side
    27,913.15x = 590,801,059.69
  5. Step 5: Solve for x
    x = 590,801,059.69/27,913.15
  6. Step 6: Final answer
    x = 21,165.69

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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.