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Finding the Fourth Proportional to 36,715.80, 55,079.00 and 13,928.06

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Solution

The fourth proportional to 36,715.80, 55,079.00 and 13,928.06 is: 20,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,715.80 : 55,079.00 = 13,928.06 : x
  2. Step 2: Convert to fraction form
    36,715.80/55,079.00 = 13,928.06/x
  3. Step 3: Cross multiply
    36,715.80x = 55,079.00 × 13,928.06
  4. Step 4: Simplify right side
    36,715.80x = 767,143,737.03
  5. Step 5: Solve for x
    x = 767,143,737.03/36,715.80
  6. Step 6: Final answer
    x = 20,894.10

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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.