Home / 19,356.40-29,034.45-5,316.40

Finding the Fourth Proportional to 19,356.40, 29,034.45 and 5,316.40

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Solution

The fourth proportional to 19,356.40, 29,034.45 and 5,316.40 is: 7,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.40 : 29,034.45 = 5,316.40 : x
  2. Step 2: Convert to fraction form
    19,356.40/29,034.45 = 5,316.40/x
  3. Step 3: Cross multiply
    19,356.40x = 29,034.45 × 5,316.40
  4. Step 4: Simplify right side
    19,356.40x = 154,358,749.98
  5. Step 5: Solve for x
    x = 154,358,749.98/19,356.40
  6. Step 6: Final answer
    x = 7,974.56

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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.