Home / 19,941.72-27,477-18,119.22

Finding the Fourth Proportional to 19,941.72, 27,477 and 18,119.22

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Solution

The fourth proportional to 19,941.72, 27,477 and 18,119.22 is: 24,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.72 : 27,477 = 18,119.22 : x
  2. Step 2: Convert to fraction form
    19,941.72/27,477 = 18,119.22/x
  3. Step 3: Cross multiply
    19,941.72x = 27,477 × 18,119.22
  4. Step 4: Simplify right side
    19,941.72x = 497,861,807.94
  5. Step 5: Solve for x
    x = 497,861,807.94/19,941.72
  6. Step 6: Final answer
    x = 24,965.84

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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.