Home / 53,213.18-79,821.44-19,926.90

Finding the Fourth Proportional to 53,213.18, 79,821.44 and 19,926.90

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Solution

The fourth proportional to 53,213.18, 79,821.44 and 19,926.90 is: 29,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,213.18 : 79,821.44 = 19,926.90 : x
  2. Step 2: Convert to fraction form
    53,213.18/79,821.44 = 19,926.90/x
  3. Step 3: Cross multiply
    53,213.18x = 79,821.44 × 19,926.90
  4. Step 4: Simplify right side
    53,213.18x = 1,590,593,852.74
  5. Step 5: Solve for x
    x = 1,590,593,852.74/53,213.18
  6. Step 6: Final answer
    x = 29,890.98

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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.