Home / 57,021.55-85,507.86-19,585.39

Finding the Fourth Proportional to 57,021.55, 85,507.86 and 19,585.39

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Solution

The fourth proportional to 57,021.55, 85,507.86 and 19,585.39 is: 29,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.55 : 85,507.86 = 19,585.39 : x
  2. Step 2: Convert to fraction form
    57,021.55/85,507.86 = 19,585.39/x
  3. Step 3: Cross multiply
    57,021.55x = 85,507.86 × 19,585.39
  4. Step 4: Simplify right side
    57,021.55x = 1,674,704,786.17
  5. Step 5: Solve for x
    x = 1,674,704,786.17/57,021.55
  6. Step 6: Final answer
    x = 29,369.68

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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.