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Finding the Fourth Proportional to 26,953.80, 40,429.32 and 10,321.80

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Solution

The fourth proportional to 26,953.80, 40,429.32 and 10,321.80 is: 15,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,953.80 : 40,429.32 = 10,321.80 : x
  2. Step 2: Convert to fraction form
    26,953.80/40,429.32 = 10,321.80/x
  3. Step 3: Cross multiply
    26,953.80x = 40,429.32 × 10,321.80
  4. Step 4: Simplify right side
    26,953.80x = 417,303,355.18
  5. Step 5: Solve for x
    x = 417,303,355.18/26,953.80
  6. Step 6: Final answer
    x = 15,482.17

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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.