Home / 21,343.19-32,007.86-7,107.87

Finding the Fourth Proportional to 21,343.19, 32,007.86 and 7,107.87

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Solution

The fourth proportional to 21,343.19, 32,007.86 and 7,107.87 is: 10,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.19 : 32,007.86 = 7,107.87 : x
  2. Step 2: Convert to fraction form
    21,343.19/32,007.86 = 7,107.87/x
  3. Step 3: Cross multiply
    21,343.19x = 32,007.86 × 7,107.87
  4. Step 4: Simplify right side
    21,343.19x = 227,507,672.32
  5. Step 5: Solve for x
    x = 227,507,672.32/21,343.19
  6. Step 6: Final answer
    x = 10,659.50

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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.