Home / 39,680.96-59,492.25-18,919.04

Finding the Fourth Proportional to 39,680.96, 59,492.25 and 18,919.04

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Solution

The fourth proportional to 39,680.96, 59,492.25 and 18,919.04 is: 28,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.96 : 59,492.25 = 18,919.04 : x
  2. Step 2: Convert to fraction form
    39,680.96/59,492.25 = 18,919.04/x
  3. Step 3: Cross multiply
    39,680.96x = 59,492.25 × 18,919.04
  4. Step 4: Simplify right side
    39,680.96x = 1,125,535,959.98
  5. Step 5: Solve for x
    x = 1,125,535,959.98/39,680.96
  6. Step 6: Final answer
    x = 28,364.64

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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.