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Finding the Fourth Proportional to 36,008.40, 53,996.40 and 13,814.40

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Solution

The fourth proportional to 36,008.40, 53,996.40 and 13,814.40 is: 20,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,008.40 : 53,996.40 = 13,814.40 : x
  2. Step 2: Convert to fraction form
    36,008.40/53,996.40 = 13,814.40/x
  3. Step 3: Cross multiply
    36,008.40x = 53,996.40 × 13,814.40
  4. Step 4: Simplify right side
    36,008.40x = 745,927,868.16
  5. Step 5: Solve for x
    x = 745,927,868.16/36,008.40
  6. Step 6: Final answer
    x = 20,715.38

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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.