Home / 30,130.31-41,596.38-20,584.55

Finding the Fourth Proportional to 30,130.31, 41,596.38 and 20,584.55

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Solution

The fourth proportional to 30,130.31, 41,596.38 and 20,584.55 is: 28,417.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.31 : 41,596.38 = 20,584.55 : x
  2. Step 2: Convert to fraction form
    30,130.31/41,596.38 = 20,584.55/x
  3. Step 3: Cross multiply
    30,130.31x = 41,596.38 × 20,584.55
  4. Step 4: Simplify right side
    30,130.31x = 856,242,763.93
  5. Step 5: Solve for x
    x = 856,242,763.93/30,130.31
  6. Step 6: Final answer
    x = 28,417.99

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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.