Home / 31,982.93-47,947.03-12,275.63

Finding the Fourth Proportional to 31,982.93, 47,947.03 and 12,275.63

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Solution

The fourth proportional to 31,982.93, 47,947.03 and 12,275.63 is: 18,402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.93 : 47,947.03 = 12,275.63 : x
  2. Step 2: Convert to fraction form
    31,982.93/47,947.03 = 12,275.63/x
  3. Step 3: Cross multiply
    31,982.93x = 47,947.03 × 12,275.63
  4. Step 4: Simplify right side
    31,982.93x = 588,579,999.88
  5. Step 5: Solve for x
    x = 588,579,999.88/31,982.93
  6. Step 6: Final answer
    x = 18,402.94

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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.