Home / 21,232.40-31,885.56-19,563.40

Finding the Fourth Proportional to 21,232.40, 31,885.56 and 19,563.40

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Solution

The fourth proportional to 21,232.40, 31,885.56 and 19,563.40 is: 29,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.40 : 31,885.56 = 19,563.40 : x
  2. Step 2: Convert to fraction form
    21,232.40/31,885.56 = 19,563.40/x
  3. Step 3: Cross multiply
    21,232.40x = 31,885.56 × 19,563.40
  4. Step 4: Simplify right side
    21,232.40x = 623,789,964.50
  5. Step 5: Solve for x
    x = 623,789,964.50/21,232.40
  6. Step 6: Final answer
    x = 29,379.15

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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.