Home / 38,315.40-57,438.90-14,936.40

Finding the Fourth Proportional to 38,315.40, 57,438.90 and 14,936.40

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Solution

The fourth proportional to 38,315.40, 57,438.90 and 14,936.40 is: 22,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.40 : 57,438.90 = 14,936.40 : x
  2. Step 2: Convert to fraction form
    38,315.40/57,438.90 = 14,936.40/x
  3. Step 3: Cross multiply
    38,315.40x = 57,438.90 × 14,936.40
  4. Step 4: Simplify right side
    38,315.40x = 857,930,385.96
  5. Step 5: Solve for x
    x = 857,930,385.96/38,315.40
  6. Step 6: Final answer
    x = 22,391.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.