Home / 28,880.81-43,322.76-9,160.94

Finding the Fourth Proportional to 28,880.81, 43,322.76 and 9,160.94

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Solution

The fourth proportional to 28,880.81, 43,322.76 and 9,160.94 is: 13,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.81 : 43,322.76 = 9,160.94 : x
  2. Step 2: Convert to fraction form
    28,880.81/43,322.76 = 9,160.94/x
  3. Step 3: Cross multiply
    28,880.81x = 43,322.76 × 9,160.94
  4. Step 4: Simplify right side
    28,880.81x = 396,877,204.99
  5. Step 5: Solve for x
    x = 396,877,204.99/28,880.81
  6. Step 6: Final answer
    x = 13,741.90

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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.