Home / 34,378.16-51,572.18-13,038.72

Finding the Fourth Proportional to 34,378.16, 51,572.18 and 13,038.72

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Solution

The fourth proportional to 34,378.16, 51,572.18 and 13,038.72 is: 19,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,378.16 : 51,572.18 = 13,038.72 : x
  2. Step 2: Convert to fraction form
    34,378.16/51,572.18 = 13,038.72/x
  3. Step 3: Cross multiply
    34,378.16x = 51,572.18 × 13,038.72
  4. Step 4: Simplify right side
    34,378.16x = 672,435,149.62
  5. Step 5: Solve for x
    x = 672,435,149.62/34,378.16
  6. Step 6: Final answer
    x = 19,559.95

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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.