Home / 39,487.59-54,492.89-21,582.68

Finding the Fourth Proportional to 39,487.59, 54,492.89 and 21,582.68

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Solution

The fourth proportional to 39,487.59, 54,492.89 and 21,582.68 is: 29,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.59 : 54,492.89 = 21,582.68 : x
  2. Step 2: Convert to fraction form
    39,487.59/54,492.89 = 21,582.68/x
  3. Step 3: Cross multiply
    39,487.59x = 54,492.89 × 21,582.68
  4. Step 4: Simplify right side
    39,487.59x = 1,176,102,226.77
  5. Step 5: Solve for x
    x = 1,176,102,226.77/39,487.59
  6. Step 6: Final answer
    x = 29,784.10

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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.