Home / 31,694.68-47,402.29-28,207.63

Finding the Fourth Proportional to 31,694.68, 47,402.29 and 28,207.63

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Solution

The fourth proportional to 31,694.68, 47,402.29 and 28,207.63 is: 42,187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,694.68 : 47,402.29 = 28,207.63 : x
  2. Step 2: Convert to fraction form
    31,694.68/47,402.29 = 28,207.63/x
  3. Step 3: Cross multiply
    31,694.68x = 47,402.29 × 28,207.63
  4. Step 4: Simplify right side
    31,694.68x = 1,337,106,257.47
  5. Step 5: Solve for x
    x = 1,337,106,257.47/31,694.68
  6. Step 6: Final answer
    x = 42,187.09

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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.