Home / 19,142.17-28,702.10-14,098.40

Finding the Fourth Proportional to 19,142.17, 28,702.10 and 14,098.40

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Solution

The fourth proportional to 19,142.17, 28,702.10 and 14,098.40 is: 21,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.17 : 28,702.10 = 14,098.40 : x
  2. Step 2: Convert to fraction form
    19,142.17/28,702.10 = 14,098.40/x
  3. Step 3: Cross multiply
    19,142.17x = 28,702.10 × 14,098.40
  4. Step 4: Simplify right side
    19,142.17x = 404,653,768.15
  5. Step 5: Solve for x
    x = 404,653,768.15/19,142.17
  6. Step 6: Final answer
    x = 21,139.39

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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.