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Finding the Fourth Proportional to 26,919.70, 40,379.55 and 17,070.10

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Solution

The fourth proportional to 26,919.70, 40,379.55 and 17,070.10 is: 25,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919.70 : 40,379.55 = 17,070.10 : x
  2. Step 2: Convert to fraction form
    26,919.70/40,379.55 = 17,070.10/x
  3. Step 3: Cross multiply
    26,919.70x = 40,379.55 × 17,070.10
  4. Step 4: Simplify right side
    26,919.70x = 689,282,956.46
  5. Step 5: Solve for x
    x = 689,282,956.46/26,919.70
  6. Step 6: Final answer
    x = 25,605.15

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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.