Home / 39,487.32-54,492.39-21,582.44

Finding the Fourth Proportional to 39,487.32, 54,492.39 and 21,582.44

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Solution

The fourth proportional to 39,487.32, 54,492.39 and 21,582.44 is: 29,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.32 : 54,492.39 = 21,582.44 : x
  2. Step 2: Convert to fraction form
    39,487.32/54,492.39 = 21,582.44/x
  3. Step 3: Cross multiply
    39,487.32x = 54,492.39 × 21,582.44
  4. Step 4: Simplify right side
    39,487.32x = 1,176,078,465.17
  5. Step 5: Solve for x
    x = 1,176,078,465.17/39,487.32
  6. Step 6: Final answer
    x = 29,783.70

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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.