Home / 19,578.60-29,368.17-14,078.70

Finding the Fourth Proportional to 19,578.60, 29,368.17 and 14,078.70

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Solution

The fourth proportional to 19,578.60, 29,368.17 and 14,078.70 is: 21,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.60 : 29,368.17 = 14,078.70 : x
  2. Step 2: Convert to fraction form
    19,578.60/29,368.17 = 14,078.70/x
  3. Step 3: Cross multiply
    19,578.60x = 29,368.17 × 14,078.70
  4. Step 4: Simplify right side
    19,578.60x = 413,465,654.98
  5. Step 5: Solve for x
    x = 413,465,654.98/19,578.60
  6. Step 6: Final answer
    x = 21,118.24

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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.