Home / 21,969.36-32,955.12-6,387.30

Finding the Fourth Proportional to 21,969.36, 32,955.12 and 6,387.30

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Solution

The fourth proportional to 21,969.36, 32,955.12 and 6,387.30 is: 9,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.36 : 32,955.12 = 6,387.30 : x
  2. Step 2: Convert to fraction form
    21,969.36/32,955.12 = 6,387.30/x
  3. Step 3: Cross multiply
    21,969.36x = 32,955.12 × 6,387.30
  4. Step 4: Simplify right side
    21,969.36x = 210,494,237.98
  5. Step 5: Solve for x
    x = 210,494,237.98/21,969.36
  6. Step 6: Final answer
    x = 9,581.26

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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.