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Finding the Fourth Proportional to 36,357.70, 54,533.67 and 12,981.70

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Solution

The fourth proportional to 36,357.70, 54,533.67 and 12,981.70 is: 19,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,357.70 : 54,533.67 = 12,981.70 : x
  2. Step 2: Convert to fraction form
    36,357.70/54,533.67 = 12,981.70/x
  3. Step 3: Cross multiply
    36,357.70x = 54,533.67 × 12,981.70
  4. Step 4: Simplify right side
    36,357.70x = 707,939,743.84
  5. Step 5: Solve for x
    x = 707,939,743.84/36,357.70
  6. Step 6: Final answer
    x = 19,471.52

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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.