Home / 19,838.12-29,750.69-6,688.58

Finding the Fourth Proportional to 19,838.12, 29,750.69 and 6,688.58

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Solution

The fourth proportional to 19,838.12, 29,750.69 and 6,688.58 is: 10,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.12 : 29,750.69 = 6,688.58 : x
  2. Step 2: Convert to fraction form
    19,838.12/29,750.69 = 6,688.58/x
  3. Step 3: Cross multiply
    19,838.12x = 29,750.69 × 6,688.58
  4. Step 4: Simplify right side
    19,838.12x = 198,989,738.09
  5. Step 5: Solve for x
    x = 198,989,738.09/19,838.12
  6. Step 6: Final answer
    x = 10,030.68

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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.