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Finding the Fourth Proportional to 19,340, 26,702.08 and 14,855.76

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Solution

The fourth proportional to 19,340, 26,702.08 and 14,855.76 is: 20,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340 : 26,702.08 = 14,855.76 : x
  2. Step 2: Convert to fraction form
    19,340/26,702.08 = 14,855.76/x
  3. Step 3: Cross multiply
    19,340x = 26,702.08 × 14,855.76
  4. Step 4: Simplify right side
    19,340x = 396,679,691.98
  5. Step 5: Solve for x
    x = 396,679,691.98/19,340
  6. Step 6: Final answer
    x = 20,510.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.