Home / 38,429.16-57,641.40-14,408.72

Finding the Fourth Proportional to 38,429.16, 57,641.40 and 14,408.72

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Solution

The fourth proportional to 38,429.16, 57,641.40 and 14,408.72 is: 21,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,429.16 : 57,641.40 = 14,408.72 : x
  2. Step 2: Convert to fraction form
    38,429.16/57,641.40 = 14,408.72/x
  3. Step 3: Cross multiply
    38,429.16x = 57,641.40 × 14,408.72
  4. Step 4: Simplify right side
    38,429.16x = 830,538,504.80
  5. Step 5: Solve for x
    x = 830,538,504.80/38,429.16
  6. Step 6: Final answer
    x = 21,612.20

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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.