Home / 31,358.20-47,044.88-18,039.72

Finding the Fourth Proportional to 31,358.20, 47,044.88 and 18,039.72

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Solution

The fourth proportional to 31,358.20, 47,044.88 and 18,039.72 is: 27,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.20 : 47,044.88 = 18,039.72 : x
  2. Step 2: Convert to fraction form
    31,358.20/47,044.88 = 18,039.72/x
  3. Step 3: Cross multiply
    31,358.20x = 47,044.88 × 18,039.72
  4. Step 4: Simplify right side
    31,358.20x = 848,676,462.63
  5. Step 5: Solve for x
    x = 848,676,462.63/31,358.20
  6. Step 6: Final answer
    x = 27,063.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.