Home / 19,356.72-29,036.88-5,316.90

Finding the Fourth Proportional to 19,356.72, 29,036.88 and 5,316.90

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Solution

The fourth proportional to 19,356.72, 29,036.88 and 5,316.90 is: 7,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.72 : 29,036.88 = 5,316.90 : x
  2. Step 2: Convert to fraction form
    19,356.72/29,036.88 = 5,316.90/x
  3. Step 3: Cross multiply
    19,356.72x = 29,036.88 × 5,316.90
  4. Step 4: Simplify right side
    19,356.72x = 154,386,187.27
  5. Step 5: Solve for x
    x = 154,386,187.27/19,356.72
  6. Step 6: Final answer
    x = 7,975.84

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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.