Home / 19,378.53-29,070.74-8,285.25

Finding the Fourth Proportional to 19,378.53, 29,070.74 and 8,285.25

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Solution

The fourth proportional to 19,378.53, 29,070.74 and 8,285.25 is: 12,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.53 : 29,070.74 = 8,285.25 : x
  2. Step 2: Convert to fraction form
    19,378.53/29,070.74 = 8,285.25/x
  3. Step 3: Cross multiply
    19,378.53x = 29,070.74 × 8,285.25
  4. Step 4: Simplify right side
    19,378.53x = 240,858,307.16
  5. Step 5: Solve for x
    x = 240,858,307.16/19,378.53
  6. Step 6: Final answer
    x = 12,429.13

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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.