Home / 56,138.97-84,144.69-18,690.24

Finding the Fourth Proportional to 56,138.97, 84,144.69 and 18,690.24

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Solution

The fourth proportional to 56,138.97, 84,144.69 and 18,690.24 is: 28,014.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,138.97 : 84,144.69 = 18,690.24 : x
  2. Step 2: Convert to fraction form
    56,138.97/84,144.69 = 18,690.24/x
  3. Step 3: Cross multiply
    56,138.97x = 84,144.69 × 18,690.24
  4. Step 4: Simplify right side
    56,138.97x = 1,572,684,450.83
  5. Step 5: Solve for x
    x = 1,572,684,450.83/56,138.97
  6. Step 6: Final answer
    x = 28,014.13

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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.