Home / 38,490.42-53,140.68-29,520.66

Finding the Fourth Proportional to 38,490.42, 53,140.68 and 29,520.66

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Solution

The fourth proportional to 38,490.42, 53,140.68 and 29,520.66 is: 40,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.42 : 53,140.68 = 29,520.66 : x
  2. Step 2: Convert to fraction form
    38,490.42/53,140.68 = 29,520.66/x
  3. Step 3: Cross multiply
    38,490.42x = 53,140.68 × 29,520.66
  4. Step 4: Simplify right side
    38,490.42x = 1,568,747,946.45
  5. Step 5: Solve for x
    x = 1,568,747,946.45/38,490.42
  6. Step 6: Final answer
    x = 40,756.84

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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.