Home / 19,905.55-29,859.37-5,114.57

Finding the Fourth Proportional to 19,905.55, 29,859.37 and 5,114.57

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Solution

The fourth proportional to 19,905.55, 29,859.37 and 5,114.57 is: 7,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.55 : 29,859.37 = 5,114.57 : x
  2. Step 2: Convert to fraction form
    19,905.55/29,859.37 = 5,114.57/x
  3. Step 3: Cross multiply
    19,905.55x = 29,859.37 × 5,114.57
  4. Step 4: Simplify right side
    19,905.55x = 152,717,675.94
  5. Step 5: Solve for x
    x = 152,717,675.94/19,905.55
  6. Step 6: Final answer
    x = 7,672.12

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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.