Home / 34,237.20-51,355.80-15,805.20

Finding the Fourth Proportional to 34,237.20, 51,355.80 and 15,805.20

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Solution

The fourth proportional to 34,237.20, 51,355.80 and 15,805.20 is: 23,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,237.20 : 51,355.80 = 15,805.20 : x
  2. Step 2: Convert to fraction form
    34,237.20/51,355.80 = 15,805.20/x
  3. Step 3: Cross multiply
    34,237.20x = 51,355.80 × 15,805.20
  4. Step 4: Simplify right side
    34,237.20x = 811,688,690.16
  5. Step 5: Solve for x
    x = 811,688,690.16/34,237.20
  6. Step 6: Final answer
    x = 23,707.80

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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.