Home / 34,139.50-51,209.28-9,515.50

Finding the Fourth Proportional to 34,139.50, 51,209.28 and 9,515.50

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Solution

The fourth proportional to 34,139.50, 51,209.28 and 9,515.50 is: 14,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.50 : 51,209.28 = 9,515.50 : x
  2. Step 2: Convert to fraction form
    34,139.50/51,209.28 = 9,515.50/x
  3. Step 3: Cross multiply
    34,139.50x = 51,209.28 × 9,515.50
  4. Step 4: Simplify right side
    34,139.50x = 487,281,903.84
  5. Step 5: Solve for x
    x = 487,281,903.84/34,139.50
  6. Step 6: Final answer
    x = 14,273.26

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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.