Home / 21,341.76-31,996.77-10,237.87

Finding the Fourth Proportional to 21,341.76, 31,996.77 and 10,237.87

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Solution

The fourth proportional to 21,341.76, 31,996.77 and 10,237.87 is: 15,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.76 : 31,996.77 = 10,237.87 : x
  2. Step 2: Convert to fraction form
    21,341.76/31,996.77 = 10,237.87/x
  3. Step 3: Cross multiply
    21,341.76x = 31,996.77 × 10,237.87
  4. Step 4: Simplify right side
    21,341.76x = 327,578,771.68
  5. Step 5: Solve for x
    x = 327,578,771.68/21,341.76
  6. Step 6: Final answer
    x = 15,349.19

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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.