Home / 38,520.42-53,156.40-22,618.50

Finding the Fourth Proportional to 38,520.42, 53,156.40 and 22,618.50

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Solution

The fourth proportional to 38,520.42, 53,156.40 and 22,618.50 is: 31,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.42 : 53,156.40 = 22,618.50 : x
  2. Step 2: Convert to fraction form
    38,520.42/53,156.40 = 22,618.50/x
  3. Step 3: Cross multiply
    38,520.42x = 53,156.40 × 22,618.50
  4. Step 4: Simplify right side
    38,520.42x = 1,202,318,033.40
  5. Step 5: Solve for x
    x = 1,202,318,033.40/38,520.42
  6. Step 6: Final answer
    x = 31,212.49

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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.