Home / 38,520.23-53,157.26-21,524.81

Finding the Fourth Proportional to 38,520.23, 53,157.26 and 21,524.81

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Solution

The fourth proportional to 38,520.23, 53,157.26 and 21,524.81 is: 29,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.23 : 53,157.26 = 21,524.81 : x
  2. Step 2: Convert to fraction form
    38,520.23/53,157.26 = 21,524.81/x
  3. Step 3: Cross multiply
    38,520.23x = 53,157.26 × 21,524.81
  4. Step 4: Simplify right side
    38,520.23x = 1,144,199,709.65
  5. Step 5: Solve for x
    x = 1,144,199,709.65/38,520.23
  6. Step 6: Final answer
    x = 29,703.87

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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.