Home / 19,941.60-27,520.40-10,989.92

Finding the Fourth Proportional to 19,941.60, 27,520.40 and 10,989.92

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Solution

The fourth proportional to 19,941.60, 27,520.40 and 10,989.92 is: 15,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.60 : 27,520.40 = 10,989.92 : x
  2. Step 2: Convert to fraction form
    19,941.60/27,520.40 = 10,989.92/x
  3. Step 3: Cross multiply
    19,941.60x = 27,520.40 × 10,989.92
  4. Step 4: Simplify right side
    19,941.60x = 302,446,994.37
  5. Step 5: Solve for x
    x = 302,446,994.37/19,941.60
  6. Step 6: Final answer
    x = 15,166.64

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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.