Home / 28,091.49-42,109.29-15,617.09

Finding the Fourth Proportional to 28,091.49, 42,109.29 and 15,617.09

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Solution

The fourth proportional to 28,091.49, 42,109.29 and 15,617.09 is: 23,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.49 : 42,109.29 = 15,617.09 : x
  2. Step 2: Convert to fraction form
    28,091.49/42,109.29 = 15,617.09/x
  3. Step 3: Cross multiply
    28,091.49x = 42,109.29 × 15,617.09
  4. Step 4: Simplify right side
    28,091.49x = 657,624,361.22
  5. Step 5: Solve for x
    x = 657,624,361.22/28,091.49
  6. Step 6: Final answer
    x = 23,410.09

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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.