Home / 19,971.32-29,975.38-10,117.46

Finding the Fourth Proportional to 19,971.32, 29,975.38 and 10,117.46

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Solution

The fourth proportional to 19,971.32, 29,975.38 and 10,117.46 is: 15,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.32 : 29,975.38 = 10,117.46 : x
  2. Step 2: Convert to fraction form
    19,971.32/29,975.38 = 10,117.46/x
  3. Step 3: Cross multiply
    19,971.32x = 29,975.38 × 10,117.46
  4. Step 4: Simplify right side
    19,971.32x = 303,274,708.13
  5. Step 5: Solve for x
    x = 303,274,708.13/19,971.32
  6. Step 6: Final answer
    x = 15,185.51

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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.