Home / 28,529.04-42,775.28-11,900.64

Finding the Fourth Proportional to 28,529.04, 42,775.28 and 11,900.64

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Solution

The fourth proportional to 28,529.04, 42,775.28 and 11,900.64 is: 17,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.04 : 42,775.28 = 11,900.64 : x
  2. Step 2: Convert to fraction form
    28,529.04/42,775.28 = 11,900.64/x
  3. Step 3: Cross multiply
    28,529.04x = 42,775.28 × 11,900.64
  4. Step 4: Simplify right side
    28,529.04x = 509,053,208.18
  5. Step 5: Solve for x
    x = 509,053,208.18/28,529.04
  6. Step 6: Final answer
    x = 17,843.33

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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.