Home / 20,941.29-31,412.66-10,547.37

Finding the Fourth Proportional to 20,941.29, 31,412.66 and 10,547.37

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Solution

The fourth proportional to 20,941.29, 31,412.66 and 10,547.37 is: 15,821.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.29 : 31,412.66 = 10,547.37 : x
  2. Step 2: Convert to fraction form
    20,941.29/31,412.66 = 10,547.37/x
  3. Step 3: Cross multiply
    20,941.29x = 31,412.66 × 10,547.37
  4. Step 4: Simplify right side
    20,941.29x = 331,320,894.97
  5. Step 5: Solve for x
    x = 331,320,894.97/20,941.29
  6. Step 6: Final answer
    x = 15,821.42

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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.