Home / 19,878.93-29,790.27-14,305.95

Finding the Fourth Proportional to 19,878.93, 29,790.27 and 14,305.95

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Solution

The fourth proportional to 19,878.93, 29,790.27 and 14,305.95 is: 21,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.93 : 29,790.27 = 14,305.95 : x
  2. Step 2: Convert to fraction form
    19,878.93/29,790.27 = 14,305.95/x
  3. Step 3: Cross multiply
    19,878.93x = 29,790.27 × 14,305.95
  4. Step 4: Simplify right side
    19,878.93x = 426,178,113.11
  5. Step 5: Solve for x
    x = 426,178,113.11/19,878.93
  6. Step 6: Final answer
    x = 21,438.68

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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.