Home / 38,157.50-52,660.58-21,167.21

Finding the Fourth Proportional to 38,157.50, 52,660.58 and 21,167.21

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Solution

The fourth proportional to 38,157.50, 52,660.58 and 21,167.21 is: 29,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.50 : 52,660.58 = 21,167.21 : x
  2. Step 2: Convert to fraction form
    38,157.50/52,660.58 = 21,167.21/x
  3. Step 3: Cross multiply
    38,157.50x = 52,660.58 × 21,167.21
  4. Step 4: Simplify right side
    38,157.50x = 1,114,677,774.52
  5. Step 5: Solve for x
    x = 1,114,677,774.52/38,157.50
  6. Step 6: Final answer
    x = 29,212.55

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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.