Home / 52,021.90-71,790.20-28,148.56

Finding the Fourth Proportional to 52,021.90, 71,790.20 and 28,148.56

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Solution

The fourth proportional to 52,021.90, 71,790.20 and 28,148.56 is: 38,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021.90 : 71,790.20 = 28,148.56 : x
  2. Step 2: Convert to fraction form
    52,021.90/71,790.20 = 28,148.56/x
  3. Step 3: Cross multiply
    52,021.90x = 71,790.20 × 28,148.56
  4. Step 4: Simplify right side
    52,021.90x = 2,020,790,941.27
  5. Step 5: Solve for x
    x = 2,020,790,941.27/52,021.90
  6. Step 6: Final answer
    x = 38,845.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.