Home / 21,333.34-29,439.75-11,903.50

Finding the Fourth Proportional to 21,333.34, 29,439.75 and 11,903.50

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Solution

The fourth proportional to 21,333.34, 29,439.75 and 11,903.50 is: 16,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.34 : 29,439.75 = 11,903.50 : x
  2. Step 2: Convert to fraction form
    21,333.34/29,439.75 = 11,903.50/x
  3. Step 3: Cross multiply
    21,333.34x = 29,439.75 × 11,903.50
  4. Step 4: Simplify right side
    21,333.34x = 350,436,064.13
  5. Step 5: Solve for x
    x = 350,436,064.13/21,333.34
  6. Step 6: Final answer
    x = 16,426.69

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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.