Home / 28,961.99-43,346.57-21,903.11

Finding the Fourth Proportional to 28,961.99, 43,346.57 and 21,903.11

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Solution

The fourth proportional to 28,961.99, 43,346.57 and 21,903.11 is: 32,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.99 : 43,346.57 = 21,903.11 : x
  2. Step 2: Convert to fraction form
    28,961.99/43,346.57 = 21,903.11/x
  3. Step 3: Cross multiply
    28,961.99x = 43,346.57 × 21,903.11
  4. Step 4: Simplify right side
    28,961.99x = 949,424,588.74
  5. Step 5: Solve for x
    x = 949,424,588.74/28,961.99
  6. Step 6: Final answer
    x = 32,781.74

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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.