Home / 39,487.31-54,492.39-21,582.44

Finding the Fourth Proportional to 39,487.31, 54,492.39 and 21,582.44

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Solution

The fourth proportional to 39,487.31, 54,492.39 and 21,582.44 is: 29,783.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.31 : 54,492.39 = 21,582.44 : x
  2. Step 2: Convert to fraction form
    39,487.31/54,492.39 = 21,582.44/x
  3. Step 3: Cross multiply
    39,487.31x = 54,492.39 × 21,582.44
  4. Step 4: Simplify right side
    39,487.31x = 1,176,078,737.63
  5. Step 5: Solve for x
    x = 1,176,078,737.63/39,487.31
  6. Step 6: Final answer
    x = 29,783.71

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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.