Home / 21,433.28-29,580.08-12,358.88

Finding the Fourth Proportional to 21,433.28, 29,580.08 and 12,358.88

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Solution

The fourth proportional to 21,433.28, 29,580.08 and 12,358.88 is: 17,056.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.28 : 29,580.08 = 12,358.88 : x
  2. Step 2: Convert to fraction form
    21,433.28/29,580.08 = 12,358.88/x
  3. Step 3: Cross multiply
    21,433.28x = 29,580.08 × 12,358.88
  4. Step 4: Simplify right side
    21,433.28x = 365,576,659.11
  5. Step 5: Solve for x
    x = 365,576,659.11/21,433.28
  6. Step 6: Final answer
    x = 17,056.50

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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.