Home / 28,777.27-43,154.56-13,981.81

Finding the Fourth Proportional to 28,777.27, 43,154.56 and 13,981.81

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Solution

The fourth proportional to 28,777.27, 43,154.56 and 13,981.81 is: 20,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.27 : 43,154.56 = 13,981.81 : x
  2. Step 2: Convert to fraction form
    28,777.27/43,154.56 = 13,981.81/x
  3. Step 3: Cross multiply
    28,777.27x = 43,154.56 × 13,981.81
  4. Step 4: Simplify right side
    28,777.27x = 603,378,858.55
  5. Step 5: Solve for x
    x = 603,378,858.55/28,777.27
  6. Step 6: Final answer
    x = 20,967.20

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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.