Home / 20,358.53-30,492.66-15,643.83

Finding the Fourth Proportional to 20,358.53, 30,492.66 and 15,643.83

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Solution

The fourth proportional to 20,358.53, 30,492.66 and 15,643.83 is: 23,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.53 : 30,492.66 = 15,643.83 : x
  2. Step 2: Convert to fraction form
    20,358.53/30,492.66 = 15,643.83/x
  3. Step 3: Cross multiply
    20,358.53x = 30,492.66 × 15,643.83
  4. Step 4: Simplify right side
    20,358.53x = 477,021,989.29
  5. Step 5: Solve for x
    x = 477,021,989.29/20,358.53
  6. Step 6: Final answer
    x = 23,431.07

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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.