Home / 37,155.98-55,722.26-12,190.21

Finding the Fourth Proportional to 37,155.98, 55,722.26 and 12,190.21

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Solution

The fourth proportional to 37,155.98, 55,722.26 and 12,190.21 is: 18,281.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,155.98 : 55,722.26 = 12,190.21 : x
  2. Step 2: Convert to fraction form
    37,155.98/55,722.26 = 12,190.21/x
  3. Step 3: Cross multiply
    37,155.98x = 55,722.26 × 12,190.21
  4. Step 4: Simplify right side
    37,155.98x = 679,266,051.07
  5. Step 5: Solve for x
    x = 679,266,051.07/37,155.98
  6. Step 6: Final answer
    x = 18,281.47

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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.