Home / 20,484.04-28,266.36-11,529.76

Finding the Fourth Proportional to 20,484.04, 28,266.36 and 11,529.76

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Solution

The fourth proportional to 20,484.04, 28,266.36 and 11,529.76 is: 15,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.04 : 28,266.36 = 11,529.76 : x
  2. Step 2: Convert to fraction form
    20,484.04/28,266.36 = 11,529.76/x
  3. Step 3: Cross multiply
    20,484.04x = 28,266.36 × 11,529.76
  4. Step 4: Simplify right side
    20,484.04x = 325,904,346.87
  5. Step 5: Solve for x
    x = 325,904,346.87/20,484.04
  6. Step 6: Final answer
    x = 15,910.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.