Home / 19,312.02-28,887.94-18,131.04

Finding the Fourth Proportional to 19,312.02, 28,887.94 and 18,131.04

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Solution

The fourth proportional to 19,312.02, 28,887.94 and 18,131.04 is: 27,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.02 : 28,887.94 = 18,131.04 : x
  2. Step 2: Convert to fraction form
    19,312.02/28,887.94 = 18,131.04/x
  3. Step 3: Cross multiply
    19,312.02x = 28,887.94 × 18,131.04
  4. Step 4: Simplify right side
    19,312.02x = 523,768,418.32
  5. Step 5: Solve for x
    x = 523,768,418.32/19,312.02
  6. Step 6: Final answer
    x = 27,121.37

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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.