Home / 21,161.12-31,735.27-6,366.11

Finding the Fourth Proportional to 21,161.12, 31,735.27 and 6,366.11

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Solution

The fourth proportional to 21,161.12, 31,735.27 and 6,366.11 is: 9,547.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.12 : 31,735.27 = 6,366.11 : x
  2. Step 2: Convert to fraction form
    21,161.12/31,735.27 = 6,366.11/x
  3. Step 3: Cross multiply
    21,161.12x = 31,735.27 × 6,366.11
  4. Step 4: Simplify right side
    21,161.12x = 202,030,219.70
  5. Step 5: Solve for x
    x = 202,030,219.70/21,161.12
  6. Step 6: Final answer
    x = 9,547.24

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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.