Home / 21,159.36-31,742.28-6,366.33

Finding the Fourth Proportional to 21,159.36, 31,742.28 and 6,366.33

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Solution

The fourth proportional to 21,159.36, 31,742.28 and 6,366.33 is: 9,550.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.36 : 31,742.28 = 6,366.33 : x
  2. Step 2: Convert to fraction form
    21,159.36/31,742.28 = 6,366.33/x
  3. Step 3: Cross multiply
    21,159.36x = 31,742.28 × 6,366.33
  4. Step 4: Simplify right side
    21,159.36x = 202,081,829.43
  5. Step 5: Solve for x
    x = 202,081,829.43/21,159.36
  6. Step 6: Final answer
    x = 9,550.47

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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.