Home / 21,332.74-29,439.99-11,903.14

Finding the Fourth Proportional to 21,332.74, 29,439.99 and 11,903.14

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Solution

The fourth proportional to 21,332.74, 29,439.99 and 11,903.14 is: 16,426.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.74 : 29,439.99 = 11,903.14 : x
  2. Step 2: Convert to fraction form
    21,332.74/29,439.99 = 11,903.14/x
  3. Step 3: Cross multiply
    21,332.74x = 29,439.99 × 11,903.14
  4. Step 4: Simplify right side
    21,332.74x = 350,428,322.57
  5. Step 5: Solve for x
    x = 350,428,322.57/21,332.74
  6. Step 6: Final answer
    x = 16,426.78

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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.