Home / 30,655.44-45,945.96-21,756.72

Finding the Fourth Proportional to 30,655.44, 45,945.96 and 21,756.72

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Solution

The fourth proportional to 30,655.44, 45,945.96 and 21,756.72 is: 32,608.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.44 : 45,945.96 = 21,756.72 : x
  2. Step 2: Convert to fraction form
    30,655.44/45,945.96 = 21,756.72/x
  3. Step 3: Cross multiply
    30,655.44x = 45,945.96 × 21,756.72
  4. Step 4: Simplify right side
    30,655.44x = 999,633,386.85
  5. Step 5: Solve for x
    x = 999,633,386.85/30,655.44
  6. Step 6: Final answer
    x = 32,608.68

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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.