Home / 30,507.90-42,100.46-17,079.09

Finding the Fourth Proportional to 30,507.90, 42,100.46 and 17,079.09

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Solution

The fourth proportional to 30,507.90, 42,100.46 and 17,079.09 is: 23,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,507.90 : 42,100.46 = 17,079.09 : x
  2. Step 2: Convert to fraction form
    30,507.90/42,100.46 = 17,079.09/x
  3. Step 3: Cross multiply
    30,507.90x = 42,100.46 × 17,079.09
  4. Step 4: Simplify right side
    30,507.90x = 719,037,249.48
  5. Step 5: Solve for x
    x = 719,037,249.48/30,507.90
  6. Step 6: Final answer
    x = 23,568.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.