Home / 31,530.40-47,156.20-28,044.88

Finding the Fourth Proportional to 31,530.40, 47,156.20 and 28,044.88

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Solution

The fourth proportional to 31,530.40, 47,156.20 and 28,044.88 is: 41,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.40 : 47,156.20 = 28,044.88 : x
  2. Step 2: Convert to fraction form
    31,530.40/47,156.20 = 28,044.88/x
  3. Step 3: Cross multiply
    31,530.40x = 47,156.20 × 28,044.88
  4. Step 4: Simplify right side
    31,530.40x = 1,322,489,970.26
  5. Step 5: Solve for x
    x = 1,322,489,970.26/31,530.40
  6. Step 6: Final answer
    x = 41,943.33

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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.