Home / 33,125.60-49,688.40-21,315.80

Finding the Fourth Proportional to 33,125.60, 49,688.40 and 21,315.80

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Solution

The fourth proportional to 33,125.60, 49,688.40 and 21,315.80 is: 31,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,125.60 : 49,688.40 = 21,315.80 : x
  2. Step 2: Convert to fraction form
    33,125.60/49,688.40 = 21,315.80/x
  3. Step 3: Cross multiply
    33,125.60x = 49,688.40 × 21,315.80
  4. Step 4: Simplify right side
    33,125.60x = 1,059,147,996.72
  5. Step 5: Solve for x
    x = 1,059,147,996.72/33,125.60
  6. Step 6: Final answer
    x = 31,973.70

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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.