Home / 19,615.68-27,051.30-15,132.36

Finding the Fourth Proportional to 19,615.68, 27,051.30 and 15,132.36

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Solution

The fourth proportional to 19,615.68, 27,051.30 and 15,132.36 is: 20,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.68 : 27,051.30 = 15,132.36 : x
  2. Step 2: Convert to fraction form
    19,615.68/27,051.30 = 15,132.36/x
  3. Step 3: Cross multiply
    19,615.68x = 27,051.30 × 15,132.36
  4. Step 4: Simplify right side
    19,615.68x = 409,350,010.07
  5. Step 5: Solve for x
    x = 409,350,010.07/19,615.68
  6. Step 6: Final answer
    x = 20,868.51

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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.