Home / 19,945.86-27,525.13-10,871.20

Finding the Fourth Proportional to 19,945.86, 27,525.13 and 10,871.20

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Solution

The fourth proportional to 19,945.86, 27,525.13 and 10,871.20 is: 15,002.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.86 : 27,525.13 = 10,871.20 : x
  2. Step 2: Convert to fraction form
    19,945.86/27,525.13 = 10,871.20/x
  3. Step 3: Cross multiply
    19,945.86x = 27,525.13 × 10,871.20
  4. Step 4: Simplify right side
    19,945.86x = 299,231,193.26
  5. Step 5: Solve for x
    x = 299,231,193.26/19,945.86
  6. Step 6: Final answer
    x = 15,002.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.