Home / 19,428.81-29,149.35-6,948.57

Finding the Fourth Proportional to 19,428.81, 29,149.35 and 6,948.57

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Solution

The fourth proportional to 19,428.81, 29,149.35 and 6,948.57 is: 10,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.81 : 29,149.35 = 6,948.57 : x
  2. Step 2: Convert to fraction form
    19,428.81/29,149.35 = 6,948.57/x
  3. Step 3: Cross multiply
    19,428.81x = 29,149.35 × 6,948.57
  4. Step 4: Simplify right side
    19,428.81x = 202,546,298.93
  5. Step 5: Solve for x
    x = 202,546,298.93/19,428.81
  6. Step 6: Final answer
    x = 10,425.05

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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.