Home / 28,776.27-43,153.05-13,980.81

Finding the Fourth Proportional to 28,776.27, 43,153.05 and 13,980.81

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Solution

The fourth proportional to 28,776.27, 43,153.05 and 13,980.81 is: 20,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.27 : 43,153.05 = 13,980.81 : x
  2. Step 2: Convert to fraction form
    28,776.27/43,153.05 = 13,980.81/x
  3. Step 3: Cross multiply
    28,776.27x = 43,153.05 × 13,980.81
  4. Step 4: Simplify right side
    28,776.27x = 603,314,592.97
  5. Step 5: Solve for x
    x = 603,314,592.97/28,776.27
  6. Step 6: Final answer
    x = 20,965.70

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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.