Home / 30,376.02-45,542.40-11,640.21

Finding the Fourth Proportional to 30,376.02, 45,542.40 and 11,640.21

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Solution

The fourth proportional to 30,376.02, 45,542.40 and 11,640.21 is: 17,452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.02 : 45,542.40 = 11,640.21 : x
  2. Step 2: Convert to fraction form
    30,376.02/45,542.40 = 11,640.21/x
  3. Step 3: Cross multiply
    30,376.02x = 45,542.40 × 11,640.21
  4. Step 4: Simplify right side
    30,376.02x = 530,123,099.90
  5. Step 5: Solve for x
    x = 530,123,099.90/30,376.02
  6. Step 6: Final answer
    x = 17,452.03

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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.