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Finding the Fourth Proportional to 22,378.60, 33,503.10 and 20,045.80

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Solution

The fourth proportional to 22,378.60, 33,503.10 and 20,045.80 is: 30,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.60 : 33,503.10 = 20,045.80 : x
  2. Step 2: Convert to fraction form
    22,378.60/33,503.10 = 20,045.80/x
  3. Step 3: Cross multiply
    22,378.60x = 33,503.10 × 20,045.80
  4. Step 4: Simplify right side
    22,378.60x = 671,596,441.98
  5. Step 5: Solve for x
    x = 671,596,441.98/22,378.60
  6. Step 6: Final answer
    x = 30,010.65

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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.