Home / 34,743.20-52,109.40-9,780.80

Finding the Fourth Proportional to 34,743.20, 52,109.40 and 9,780.80

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Solution

The fourth proportional to 34,743.20, 52,109.40 and 9,780.80 is: 14,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,743.20 : 52,109.40 = 9,780.80 : x
  2. Step 2: Convert to fraction form
    34,743.20/52,109.40 = 9,780.80/x
  3. Step 3: Cross multiply
    34,743.20x = 52,109.40 × 9,780.80
  4. Step 4: Simplify right side
    34,743.20x = 509,671,619.52
  5. Step 5: Solve for x
    x = 509,671,619.52/34,743.20
  6. Step 6: Final answer
    x = 14,669.68

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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.