Home / 28,007.24-42,009.44-10,475.78

Finding the Fourth Proportional to 28,007.24, 42,009.44 and 10,475.78

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Solution

The fourth proportional to 28,007.24, 42,009.44 and 10,475.78 is: 15,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.24 : 42,009.44 = 10,475.78 : x
  2. Step 2: Convert to fraction form
    28,007.24/42,009.44 = 10,475.78/x
  3. Step 3: Cross multiply
    28,007.24x = 42,009.44 × 10,475.78
  4. Step 4: Simplify right side
    28,007.24x = 440,081,651.36
  5. Step 5: Solve for x
    x = 440,081,651.36/28,007.24
  6. Step 6: Final answer
    x = 15,713.14

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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.