Home / 38,991.62-58,492.64-13,685.12

Finding the Fourth Proportional to 38,991.62, 58,492.64 and 13,685.12

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Solution

The fourth proportional to 38,991.62, 58,492.64 and 13,685.12 is: 20,529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991.62 : 58,492.64 = 13,685.12 : x
  2. Step 2: Convert to fraction form
    38,991.62/58,492.64 = 13,685.12/x
  3. Step 3: Cross multiply
    38,991.62x = 58,492.64 × 13,685.12
  4. Step 4: Simplify right side
    38,991.62x = 800,478,436.63
  5. Step 5: Solve for x
    x = 800,478,436.63/38,991.62
  6. Step 6: Final answer
    x = 20,529.50

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1.5x scale

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.