Home / 20,278.07-30,417.18-6,238

Finding the Fourth Proportional to 20,278.07, 30,417.18 and 6,238

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Solution

The fourth proportional to 20,278.07, 30,417.18 and 6,238 is: 9,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278.07 : 30,417.18 = 6,238 : x
  2. Step 2: Convert to fraction form
    20,278.07/30,417.18 = 6,238/x
  3. Step 3: Cross multiply
    20,278.07x = 30,417.18 × 6,238
  4. Step 4: Simplify right side
    20,278.07x = 189,742,368.84
  5. Step 5: Solve for x
    x = 189,742,368.84/20,278.07
  6. Step 6: Final answer
    x = 9,357.02

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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.