Home / 21,175.36-31,766.28-6,382.32

Finding the Fourth Proportional to 21,175.36, 31,766.28 and 6,382.32

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Solution

The fourth proportional to 21,175.36, 31,766.28 and 6,382.32 is: 9,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.36 : 31,766.28 = 6,382.32 : x
  2. Step 2: Convert to fraction form
    21,175.36/31,766.28 = 6,382.32/x
  3. Step 3: Cross multiply
    21,175.36x = 31,766.28 × 6,382.32
  4. Step 4: Simplify right side
    21,175.36x = 202,742,564.17
  5. Step 5: Solve for x
    x = 202,742,564.17/21,175.36
  6. Step 6: Final answer
    x = 9,574.46

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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.