Home / 38,178.24-52,685.28-21,181.92

Finding the Fourth Proportional to 38,178.24, 52,685.28 and 21,181.92

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Solution

The fourth proportional to 38,178.24, 52,685.28 and 21,181.92 is: 29,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.24 : 52,685.28 = 21,181.92 : x
  2. Step 2: Convert to fraction form
    38,178.24/52,685.28 = 21,181.92/x
  3. Step 3: Cross multiply
    38,178.24x = 52,685.28 × 21,181.92
  4. Step 4: Simplify right side
    38,178.24x = 1,115,975,386.14
  5. Step 5: Solve for x
    x = 1,115,975,386.14/38,178.24
  6. Step 6: Final answer
    x = 29,230.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.